The Ancient World
Events · 156
- c. 5400–4000 BCEAncient Mesopotamia
Eridu and the First Cities
On the marshy plain of southern Mesopotamia, the earliest settlements grew during the Ubaid period. Eridu — regarded by the Sumerians as the first city, home of the god Enki — took shape around 5400 BCE, with a temple rebuilt on the same spot for thousands of years.
Reputable source - 4th millennium BCEAncient Mesopotamia
The Rise of Uruk and the First Cities
Uruk grew into the world's first true metropolis, home to tens of thousands of people, ringed by great walls and centred on monumental temple complexes such as the Eanna precinct of the goddess Inanna.
Reputable source · 2 sources - c. 3500 BCEAncient Mesopotamia
The Wheel and the Plow
Mesopotamia gave the world some of its most fundamental technologies. The wheel — first used for pottery and then for transport — appears here in the 4th millennium BCE, alongside the ox-drawn plow and the sailing boat.
Reputable source - c. 3200 BCEAncient Mesopotamia
The Invention of Cuneiform Writing
Sumerian scribes began pressing a reed stylus into wet clay to record grain, livestock and trade. These wedge-shaped marks — cuneiform, from the Latin for 'wedge' — grew from simple pictographs into a full writing system.
Reputable source - c. 3100 BCEAncient Egypt
The Unification of Upper and Lower Egypt
Egypt was united into a single kingdom under one ruler — traditionally the king Narmer (often identified with the legendary Menes), who is shown on the Narmer Palette wearing the crowns of both Upper and Lower Egypt. Scholars increasingly see unification not as a single conquest but as a gradual process of consolidation.
Reputable source · 2 sources - from c. 3000 BCEAncient Mesopotamia
Counting in Base 60
Sumerian and later Babylonian mathematicians developed a sophisticated number system built on base 60 (sexagesimal), mastering fractions, algebra, geometry and the systematic observation of the heavens.
Reputable source - from the 3rd millennium BCEAncient Mesopotamia
The Gods of Mesopotamia
The Mesopotamians worshipped hundreds of gods who, they believed, had created humans to serve them. Great deities such as Anu, Enlil, and Inanna-Ishtar each had their own temple-city, and towering ziggurats served as the gods' earthly homes.
Reputable source - Early Dynastic Period, c. 2900–2334 BCEAncient Mesopotamia
The Sumerian City-States and the King List
Southern Mesopotamia was divided among rival city-states — Ur, Uruk, Lagash, Kish and others — each ruled by a king and centred on its patron god's temple. The Sumerian King List records these dynasties, claiming kingship had 'descended from heaven'.
Reputable source - c. 2670 BCEAncient Egypt
Djoser's Step Pyramid at Saqqara
The architect Imhotep built the Step Pyramid at Saqqara as a tomb for King Djoser — six stone mastabas stacked atop one another, originally about 62 metres (203 ft) tall. It was Egypt's first pyramid and its first large-scale monument built entirely of cut stone.
Reputable source - c. 2600 BCEAncient Mesopotamia
The Royal Tombs of Ur
At Ur, archaeologist Leonard Woolley (1922–1934) uncovered sixteen 'royal' tombs, including that of Queen Puabi, filled with gold, silver, lapis lazuli and carnelian treasures — along with the bodies of dozens of sacrificed attendants.
Reputable source · 2 sources - c. 2560 BCEAncient Egypt
The Great Pyramid of Giza
During the reign of King Khufu of the 4th Dynasty, the Great Pyramid of Giza was built from more than two million stone blocks, rising about 146 metres (479 ft). It remained the tallest human-made structure on Earth for over 3,000 years.
Reputable source · 2 sources - c. 2500 BCEAncient Egypt
The Great Sphinx of Giza
The Great Sphinx — a recumbent lion with a king's head, carved from a single outcrop of limestone on the Giza plateau — is generally attributed to the reign of King Khafre, builder of the second Giza pyramid. It is the largest monolithic statue in the world.
Reputable source - c. 2350 BCEAncient Egypt
The Pyramid Texts
Inscribed on the walls of royal pyramids at Saqqara beginning in the reign of King Unas at the end of the 5th Dynasty, the Pyramid Texts are a body of spells meant to guide and protect the dead king's soul in the afterlife. They are the oldest known religious writings in the world.
Reputable source - c. 2334 BCEAncient Mesopotamia
Sargon of Akkad and the World's First Empire
Sargon of Akkad conquered the Sumerian city-states and united Mesopotamia under a single ruler, founding the Akkadian Empire and a new capital, Akkad. He is remembered as the first great empire-builder in history.
Reputable source · 2 sources - c. 2181 BCEAncient Egypt
The Collapse of the Old Kingdom
Around 2181 BCE the centralized government of the Old Kingdom broke down. A combination of the long reign and unclear succession of Pepi II, the rising power of provincial governors and priests, and a severe drought fragmented Egypt into the regionally ruled First Intermediate Period.
Reputable source - c. 2150 BCEAncient Mesopotamia
The Fall of Akkad
After about 150 years, the Akkadian Empire collapsed. Invading Gutians from the Zagros Mountains, combined — many scholars argue — with a severe drought, brought down the world's first empire.
Reputable source · 2 sources - c. 2144–2124 BCEAncient Mesopotamia
Gudea of Lagash
Amid the fragmentation after Akkad, Gudea ruled the city-state of Lagash in a period of peace and prosperity. He devoted himself to building temples, and left behind many finely carved diorite statues portraying himself in prayer.
Reputable source - c. 2112–2004 BCEAncient Mesopotamia
The Third Dynasty of Ur and the First Law Code
Ur-Nammu founded the Third Dynasty of Ur, reuniting Sumer and raising the Great Ziggurat of Ur. His reign produced the Code of Ur-Nammu — the oldest surviving written law code, predating Hammurabi's by three centuries.
Reputable source · 3 sources - c. 2055 BCEAncient Egypt
Reunification: The Middle Kingdom
The Theban king Mentuhotep II defeated his rivals at Herakleopolis and reunified Upper and Lower Egypt, making Thebes the capital and inaugurating the Middle Kingdom. Later Egyptians praised him as a 'second Menes.'
Reputable source - c. 2000–1450 BCEAncient Greece
The Minoan Civilization
On the island of Crete, the Minoans built Europe's first advanced civilization, centered on sprawling, labyrinth-like palace complexes such as Knossos. They are known for vivid frescoes of bull-leaping and marine life, fine craftsmanship, and wide trade across the Aegean.
Reputable source · 2 sources - c. 2000 BCE – 250 CEThe Maya Civilization
The First Maya
The Maya emerged from farming villages in the lowlands and highlands of Mesoamerica, cultivating maize, beans and squash. Drawing on the earlier Olmec culture, by the late Preclassic they were raising the first cities, pyramids and monuments.
Reputable source - written c. 2100–1200 BCEAncient Mesopotamia
The Epic of Gilgamesh
Sumerian poems about the hero-king Gilgamesh were gradually woven into a single epic. It follows Gilgamesh's quest for immortality and includes a great flood story strikingly similar to the later biblical account of Noah.
Reputable source · 2 sources - c. 1754 BCEAncient Mesopotamia
Hammurabi's Code and the Glory of Babylon
Hammurabi of Babylon united most of Mesopotamia and issued a famous code of nearly 300 laws, inscribed on a tall stone stele and topped by an image of the king before the sun god Shamash. Its penalties followed the principle of 'an eye for an eye.'
Reputable source · 3 sources - c. 1650 BCEAncient Egypt
The Hyksos Seize the Delta
A West Semitic people known as the Hyksos, who had settled in the eastern Nile Delta at Avaris, rose to rule Lower Egypt during the Second Intermediate Period — the first time foreigners held such power in Egypt. They introduced the horse and chariot and the composite bow.
Reputable source - c. 1600–1100 BCEAncient Greece
The Mycenaean Civilization
The Mycenaeans, named after their fortress-city of Mycenae, dominated Late Bronze Age mainland Greece and the Aegean. They built massive citadels, traded across the Mediterranean, and kept records in Linear B — the earliest written form of the Greek language.
Reputable source - 1595 BCEAncient Mesopotamia
The Hittite Sack of Babylon
In 1595 BCE, the Hittite king Mursili I raided far south and sacked Babylon, carrying off its treasures and ending the dynasty Hammurabi had founded. The Hittites soon withdrew, leaving the city weakened.
Reputable source · 2 sources - c. 1550 BCEAncient Egypt
The New Kingdom Begins
The Theban king Ahmose I drove the Hyksos out of Egypt, destroyed their capital Avaris, pushed back the Nubians to the south, and reunified the country under his rule from Thebes — beginning the New Kingdom.
Reputable source - c. 1595–1155 BCEAncient Mesopotamia
The Kassite Dynasty of Babylon
Into the vacuum stepped the Kassites, a people of uncertain origin who seized Babylon and ruled it for over four centuries — the longest single dynasty in Babylonian history. They restored stability and preserved Babylonian culture.
Reputable source - c. 1479–1458 BCEAncient Egypt
Hatshepsut Becomes Pharaoh
Beginning as regent for her young stepson Thutmose III, Hatshepsut had herself crowned pharaoh and ruled in her own right for about two decades — one of the very few women to hold the full power of pharaoh. Her reign was prosperous and peaceful, marked by ambitious building and trade expeditions.
Reputable source - c. 1457 BCEAncient Egypt
Thutmose III and the Battle of Megiddo
At the Battle of Megiddo, Thutmose III defeated a coalition of Canaanite rulers by boldly marching his army through a narrow pass to surprise the enemy. Through a series of campaigns he extended Egypt's reach from the Euphrates to deep into Nubia.
Reputable source - from c. 1350 BCEAncient Mesopotamia
The Rise of Assyria
In the north, the city of Ashur grew into a powerful kingdom named for its chief god. Through the Middle and then Neo-Assyrian periods, Assyria built one of the ancient world's most formidable military states.
Reputable source - c. 1348 BCEAncient Egypt
Akhenaten's Religious Revolution
The pharaoh Akhenaten swept away Egypt's traditional gods and elevated the sun-disk Aten as the single supreme deity — often called the first known experiment in monotheism. He moved the capital to a new city, Akhetaten (Amarna), and, with his wife Nefertiti, presented the royal couple as intermediaries of the god.
Reputable source - c. 1332 BCEAncient Egypt
The Reign of Tutankhamun
The boy-king Tutankhamun reversed his father Akhenaten's revolution: he changed his name from Tutankhaten to Tutankhamun, restored the old gods and their temples, and returned the capital to Thebes. He died before the age of twenty.
Reputable source · 2 sources - 1274 BCEAncient Egypt
Ramesses II and the Battle of Kadesh
At Kadesh in Syria, Pharaoh Ramesses II clashed with the Hittite king Muwatalli II in one of the largest chariot battles in history. Ramesses, drawn into an ambush after being misled about the Hittite position, rallied his forces; both sides claimed victory, but the battle is generally judged a draw.
Reputable source - 1258 BCEAncient Egypt
The Egyptian–Hittite Peace Treaty
About sixteen years after Kadesh, Ramesses II and the Hittite king Hattusili III signed a formal peace treaty ending the long conflict and pledging mutual defense and the return of fugitives. Copies survive in both Egyptian and Hittite versions.
Reputable source - c. 1200 BCE (legendary)Ancient Greece
The Trojan War
According to Greek legend, a coalition of Mycenaean Greeks under Agamemnon besieged the city of Troy for ten years to recover Helen, wife of the Spartan king Menelaus. The story is immortalized in Homer's Iliad. Archaeology at the site of Troy shows destruction around 1250 BCE, but the epic account is regarded as largely myth.
Reputable source - c. 1177 BCEAncient Egypt
The Sea Peoples Invade: Ramesses III
Pharaoh Ramesses III defeated a confederation of raiders known as the Sea Peoples, decisively at the Battle of the Delta around 1177 BCE. The war was so costly that it drained the royal treasury, and Egypt entered a long decline.
Reputable source - c. 1100–800 BCEAncient Greece
The Greek Dark Age
Around 1100 BCE the Mycenaean palaces collapsed amid the wider Bronze Age Collapse; cities were abandoned, populations fell, and the Linear B script was lost. Greece fragmented into small, isolated communities for some three centuries.
Reputable source - c. 1069 BCEAncient Egypt
The Third Intermediate Period Begins
With the end of the 20th Dynasty under Ramesses XI, central authority collapsed again. The high priests of Amun ruled Upper Egypt from Thebes while kings ruled the north, beginning the fragmented Third Intermediate Period.
Reputable source - 883–859 BCEAncient Mesopotamia
Ashurnasirpal II and the Assyrian War Machine
Ashurnasirpal II expanded the Neo-Assyrian Empire through relentless, brutal campaigns and moved the capital to a magnificent new city at Kalhu (Nimrud), decorated with carved stone reliefs boasting of his conquests.
Reputable source - 776 BCEAncient Greece
The First Olympic Games
The first recorded Olympic Games were held at the sanctuary of Olympia in the western Peloponnese in honor of Zeus. Held every four years, the Games drew athletes and tens of thousands of spectators from across the Greek world during a sacred truce.
Reputable source · 2 sources - 753 BCE (traditional)Ancient Rome
The Traditional Founding of Rome
According to Roman legend, the city was founded on 21 April 753 BCE by Romulus, who — raised with his twin Remus by a she-wolf on the banks of the Tiber — killed his brother in a quarrel and named the city after himself. Archaeology instead points to villages on the Palatine Hill from around the 9th century BCE that gradually grew together into a city.
Reputable source · 2 sources - c. 750–550 BCEAncient Greece
Greek Colonization of the Mediterranean
Driven by population growth and trade, Greek city-states founded colonies around the Mediterranean and Black Sea — from Massalia (Marseille) in the west to the shores of Anatolia. Corinth founded Syracuse in Sicily; other cities settled southern Italy (Magna Graecia).
Reputable source - c. 750 BCEAncient Greece
Homer and the Greek Alphabet
In the 8th century BCE the Greeks adapted the Phoenician alphabet to their own language, and the great oral epics attributed to Homer — the Iliad and the Odyssey — were composed and eventually written down.
Reputable source · 2 sources - c. 747 BCEAncient Egypt
The Kushite (25th) Dynasty
The kings of Kush, a powerful Nubian kingdom to Egypt's south, conquered a divided Egypt. Beginning with King Piye around 747 BCE, they ruled the whole country as the 25th Dynasty, presenting themselves as restorers and guardians of Egyptian tradition.
Reputable source - 745–727 BCEAncient Mesopotamia
Tiglath-Pileser III Rebuilds the Empire
Tiglath-Pileser III reformed the Assyrian state — creating a standing professional army, reorganising the provinces, and deporting conquered peoples on a massive scale to prevent rebellion.
Reputable source - 705–681 BCEAncient Mesopotamia
Sennacherib and the Zenith of Assyria
Sennacherib made Nineveh the greatest city in the world, building a 'Palace Without Rival' and an advanced system of canals and aqueducts. His campaigns included the famous siege of the fortress of Lachish, recorded in stone reliefs.
Reputable source · 2 sources - 671 BCEAncient Egypt
The Assyrian Conquest of Egypt
The Assyrian king Esarhaddon invaded Egypt in 671 BCE, capturing Memphis and driving out the Kushite rulers. Renewed campaigns under his successor Ashurbanipal reached as far south as Thebes, which was sacked.
Reputable source - 664 BCEAncient Egypt
The Saite Renaissance
Psamtik I, ruling from Sais in the Delta, threw off Assyrian control and reunited Egypt, founding the 26th (Saite) Dynasty. His reign began a cultural revival that consciously looked back to the art and traditions of Egypt's earlier golden ages.
Reputable source - 668–627 BCEAncient Mesopotamia
The Library of Ashurbanipal
King Ashurbanipal gathered tens of thousands of clay tablets into a great library at Nineveh, collecting literature, science, omens and history — including the best-preserved copy of the Epic of Gilgamesh.
Reputable source - 612 BCEAncient Mesopotamia
The Fall of Nineveh
A coalition of Babylonians and Medes besieged and destroyed Nineveh in 612 BCE. Within a few years the mighty Neo-Assyrian Empire — once the dominant power of the Near East — had collapsed entirely.
Reputable source - 605–562 BCEAncient Mesopotamia
Nebuchadnezzar II and the Neo-Babylonian Empire
Nebuchadnezzar II made Babylon the largest and most splendid city on Earth, inheriting Assyria's territories and rebuilding the capital on a monumental scale.
Reputable source · 2 sources - 594 BCEAncient Greece
Solon's Reforms at Athens
Appointed archon of Athens amid economic crisis, the statesman and poet Solon abolished debt-slavery, cancelled debts, and restructured Athenian society and law to reduce the power of the aristocracy and give ordinary citizens a stake in government.
Reputable source - 587 BCEAncient Mesopotamia
The Destruction of Jerusalem and the Babylonian Exile
After a revolt, Nebuchadnezzar II captured Jerusalem, destroyed its Temple, and deported much of the population of Judah to Babylon — the event known as the Babylonian Captivity or Exile.
Reputable source - c. 585 BCEAncient Greece
The Birth of Philosophy: Thales of Miletus
Thales of Miletus sought to explain the natural world through reason rather than myth, proposing that water was the fundamental substance of all things. Aristotle later called him the 'first philosopher.'
Reputable source - 6th century BCEAncient Mesopotamia
The Ishtar Gate and the Hanging Gardens
Nebuchadnezzar's Babylon was famed for the Ishtar Gate — a towering entrance faced with brilliant blue glazed bricks and images of dragons and bulls — and for the legendary Hanging Gardens, counted among the Seven Wonders of the Ancient World.
Reputable source · 2 sources - 1st millennium BCEAncient Mesopotamia
Babylonian Astronomy and the Zodiac
Babylonian scholars kept meticulous records of the night sky for centuries, tracking the planets, predicting eclipses, and dividing the sky into the twelve signs of the zodiac.
Reputable source - 539 BCEAncient Mesopotamia
The Fall of Babylon to Cyrus the Great
In 539 BCE, Cyrus the Great of Persia captured Babylon, ending the Neo-Babylonian Empire and absorbing Mesopotamia into the vast Persian Empire. The Cyrus Cylinder records his version of the conquest and his policies toward the conquered.
Reputable source · 2 sources - 525 BCEAncient Egypt
The Persian Conquest
The Persian king Cambyses II defeated Pharaoh Psamtik III at the Battle of Pelusium in 525 BCE and captured Memphis, bringing Egypt into the Achaemenid Empire as its 27th Dynasty. Cambyses had himself crowned pharaoh in the Egyptian manner.
Reputable source - 509 BCEAncient Rome
The Roman Republic Is Founded
According to tradition, the Romans expelled their last king, the Etruscan Lucius Tarquinius Superbus, and replaced the monarchy with a republic. Power passed to two consuls elected each year and to the Senate, with institutions designed to prevent any one man from ruling as king.
Reputable source - 508 BCEAncient Greece
Cleisthenes and the Birth of Democracy
The Athenian reformer Cleisthenes reorganized the citizen body into local units (demes) and ten new tribes, breaking the power of the old aristocratic families, and introduced ostracism. He is credited as the founder of Athenian democracy.
Reputable source - 499 BCEAncient Greece
The Ionian Revolt
The Greek city-states of Ionia, on the coast of Asia Minor, rose up against their Persian overlords, with support from Athens and Eretria. They burned Sardis, but the revolt was crushed by 493 BCE.
Reputable source - 490 BCEAncient Greece
The Battle of Marathon
A Persian invasion force sent by Darius I landed at Marathon, northeast of Athens. Heavily outnumbered, the Athenian hoplites under Miltiades used an unexpected tactic to envelop and rout the Persians. By tradition, the Athenians lost 192 men to thousands of Persians.
Reputable source - 480 BCEAncient Greece
Thermopylae and Salamis
The Persian king Xerxes invaded Greece with a huge army. At the pass of Thermopylae, King Leonidas and 300 Spartans with other Greeks held off the Persians for three days before being overwhelmed. Weeks later, the Greek fleet under Themistocles lured the Persian navy into the straits of Salamis and destroyed it.
Reputable source · 2 sources - 478–431 BCEAncient Greece
The Age of Pericles and the Delian League
After the Persian Wars, Athens led the Delian League, an alliance of Greek states formed in 478 BCE for defense against Persia, which it gradually turned into an Athenian empire. Under the statesman Pericles, Athens entered a golden age of democracy, art, and imperial power.
Reputable source · 2 sources - 5th century BCEAncient Greece
Greek Tragedy and the Theatre
At the festivals of Dionysus in Athens, drama flourished into the art of tragedy. The great playwrights Aeschylus — the 'father of tragedy' — Sophocles, and Euripides staged works exploring fate, justice, and the human condition before mass audiences.
Reputable source - 451–450 BCEAncient Rome
The Twelve Tables
Under pressure from the plebeians, a commission known as the decemviri drew up Rome's first written law code, inscribed on ten and then twelve bronze tablets. It set down rules on property, family authority, inheritance, and civil disputes.
Reputable source - 447–432 BCEAncient Greece
The Parthenon
On the Acropolis of Athens, the Parthenon was built as a temple to the city's patron goddess Athena. Designed by the architects Iktinos and Kallikrates and adorned with sculptures overseen by Phidias, it was funded largely from the treasury of the Delian League.
Reputable source · 3 sources - c. 440 BCEAncient Greece
Herodotus, the Father of History
The Greek writer Herodotus composed his Histories, a sweeping account of the Greco-Persian Wars interwoven with observations from his travels. He was the first known writer to systematically gather, test, and narrate his sources.
Reputable source - 431–404 BCEAncient Greece
The Peloponnesian War
A long and ruinous war pitted Athens and its maritime empire against Sparta and its allies. Athens was struck by a devastating plague early on; the war ended when Sparta, backed by Persian gold, destroyed the Athenian fleet at Aegospotami and forced Athens to surrender in 404 BCE.
Reputable source - 399 BCEAncient Greece
The Trial and Death of Socrates
The philosopher Socrates was tried in Athens on charges of impiety and 'corrupting the youth,' condemned, and executed by drinking hemlock. His final days are recorded in the dialogues of his student Plato.
Reputable source - 390 BCE (traditional)Ancient Rome
The Gauls Sack Rome
A Gallic army of the Senones under the chieftain Brennus routed the Romans at the River Allia and then sacked the city itself, which had been left largely undefended. A garrison held out on the Capitoline Hill until the Romans paid a ransom in gold for the Gauls to withdraw.
Reputable source - c. 387 BCEAncient Greece
Plato Founds the Academy
Socrates' student Plato founded the Academy on the outskirts of Athens — a school of philosophy, mathematics, and science often called the first university of the Western world. There he developed his Theory of Forms and taught, among others, Aristotle.
Reputable source - 338 BCEAncient Greece
Philip II and the Battle of Chaeronea
King Philip II of Macedon, who had forged a formidable army built around the long pike (sarissa) and the reformed phalanx, defeated the combined forces of Athens and Thebes at Chaeronea in 338 BCE. His eighteen-year-old son Alexander led the cavalry charge.
Reputable source - 335 BCEAncient Greece
Aristotle Founds the Lyceum
Returning to Athens in 335 BCE, Aristotle — a former student of Plato and tutor of Alexander the Great — founded his own school, the Lyceum. He pursued a vast, empirical program of study across biology, physics, logic, ethics, and politics.
Reputable source - 334–323 BCEAncient Greece
Alexander the Great's Conquests
Beginning in 334 BCE, Alexander III of Macedon led a Greek and Macedonian army in a lightning campaign that toppled the vast Persian Empire and reached as far as Egypt and the borders of India, never losing a battle.
Reputable source - 332 BCEAncient Egypt
Alexander the Great Conquers Egypt
Alexander the Great took Egypt from the Persians in 332 BCE, welcomed by many Egyptians as a liberator and without resistance. The following year he founded the city of Alexandria on the Mediterranean coast.
Reputable source · 2 sources - 323 BCEAncient Greece
The Death of Alexander and the Hellenistic Age
Alexander died at Babylon in 323 BCE, aged 32, without a clear heir. His generals — the Diadochi, or 'Successors' — fought over his empire, which fractured into the great Hellenistic kingdoms: the Ptolemies in Egypt, the Seleucids in the Near East, and the Antigonids in Macedon and Greece.
Reputable source - 305 BCEAncient Egypt
The Ptolemaic Dynasty Begins
After Alexander's death, his general Ptolemy took Egypt and, in 305 BCE, declared himself king as Ptolemy I Soter, founding a Macedonian-Greek dynasty that ruled from Alexandria. The Ptolemies fused Hellenistic kingship with Egyptian religious tradition.
Reputable source - from c. 300 BCEThe Maya Civilization
Maya Hieroglyphic Writing
The Maya developed the most advanced writing system in the pre-Columbian Americas — a script of hundreds of glyphs combining picture-signs and syllabic sounds, carved on stone monuments and painted in bark-paper books called codices.
Reputable source - c. 300–212 BCEAncient Greece
Hellenistic Science: Euclid and Archimedes
In the Hellenistic world, Greek science reached its peak. Around 300 BCE Euclid, working at Alexandria, wrote the Elements, the foundational textbook of geometry. Later, Archimedes of Syracuse (c. 287–212 BCE) made landmark discoveries in mathematics, physics, and engineering — from the principle of buoyancy to the Archimedes screw.
Reputable source · 2 sources - c. 300–280 BCEAncient Egypt
The Library and Lighthouse of Alexandria
Under the first Ptolemies, Alexandria acquired two of antiquity's most famous institutions: the Great Library and Museum, which gathered thousands of scrolls and scholars such as Euclid, and the Pharos lighthouse — a tower over 100 metres tall counted among the Seven Wonders of the ancient world.
Reputable source · 2 sources - 264 BCEAncient Rome
The First Punic War Begins
Rome and Carthage went to war over Sicily after both were drawn into a dispute at Messana. The long conflict (264–241 BCE) was fought on land and, decisively, at sea, forcing Rome to build its first major navy.
Reputable source - 218–201 BCEAncient Rome
Hannibal Invades Italy: The Second Punic War
The Carthaginian general Hannibal marched an army — famously with war elephants — over the Alps into Italy, crushing Roman forces at the Trebia, Lake Trasimene, and catastrophically at Cannae in 216 BCE. Rome recovered, took the war to Africa, and Scipio Africanus defeated Hannibal at Zama in 202 BCE.
Reputable source - 196 BCEAncient Egypt
The Rosetta Stone
A council of priests issued a decree honoring the young king Ptolemy V, inscribed on a stone slab in three scripts — Egyptian hieroglyphs, Demotic, and ancient Greek. Rediscovered in 1799, the Rosetta Stone let scholars — decisively Jean-François Champollion in the 1820s — finally decipher hieroglyphs.
Reputable source · 2 sources - 146 BCEAncient Greece
The Roman Conquest of Greece
In 146 BCE, after war with the Achaean League, Roman forces under Lucius Mummius sacked the wealthy city of Corinth and dissolved the League. Greece was brought under Roman control, later organized as the province of Achaea.
Reputable source - 146 BCEAncient Rome
The Destruction of Carthage
Urged on by Cato the Elder's refrain that 'Carthage must be destroyed,' Rome besieged and in 146 BCE stormed the city in the Third Punic War, razing it and enslaving the survivors. Its territory became the Roman province of Africa.
Reputable source - 133 BCEAncient Rome
Tiberius Gracchus and the Reform Crisis
As tribune in 133 BCE, Tiberius Gracchus pushed through a law redistributing public land to the poor, bypassing a hostile Senate by appealing directly to the popular assembly. He and some 300 supporters were killed in the political violence that followed.
Reputable source - 49 BCEAncient Rome
Caesar Crosses the Rubicon
Ordered by the Senate to give up his command, Julius Caesar instead led his army across the Rubicon, the small river marking the northern boundary of Italy — an act of open rebellion that plunged Rome into civil war against Pompey and the Senate.
Reputable source - March 15, 44 BCEAncient Rome
The Assassination of Julius Caesar
Having been named dictator for life, Julius Caesar was stabbed to death by a group of senators led by Brutus and Cassius at a meeting of the Senate on the Ides of March — 15 March — 44 BCE.
Reputable source - 31 BCEAncient Rome
The Battle of Actium
In a naval battle off the western coast of Greece, the fleet of Octavian, commanded by his admiral Agrippa, defeated the combined forces of Mark Antony and Cleopatra VII of Egypt. The pair fled and took their own lives the following year.
Reputable source - 30 BCEAncient Egypt
The Death of Cleopatra and Roman Annexation
After she and Mark Antony were defeated by Octavian at the Battle of Actium (31 BCE), Octavian invaded Egypt and besieged Alexandria. Rather than be paraded through Rome, Cleopatra VII took her own life in 30 BCE. Egypt was annexed as a Roman province.
Reputable source · 2 sources - 27 BCEAncient Rome
Augustus, the First Roman Emperor
In 27 BCE the Senate granted Octavian the honorific name Augustus and a suite of powers. Presenting himself not as a king but as princeps — 'first citizen' — he became in effect Rome's first emperor while preserving the outward forms of the Republic.
Reputable source - 64 CEAncient Rome
The Great Fire of Rome
A fire that broke out near the Circus Maximus in July 64 CE burned for days and devastated much of Rome. Ancient sources disagree on its cause; the emperor Nero, later rumored to have started it, instead blamed and violently persecuted the city's Christians.
Reputable source - 70 CEAncient Rome
The Destruction of the Second Temple
During the First Jewish–Roman War, the future emperor Titus besieged Jerusalem and, in 70 CE, his legions captured the city and destroyed the Second Temple by fire.
Reputable source - 79 CEAncient Rome
Vesuvius Buries Pompeii
The eruption of Mount Vesuvius in 79 CE buried the Roman towns of Pompeii and Herculaneum under ash and volcanic debris, killing many inhabitants and sealing the sites in remarkable detail.
Reputable source · 2 sources - 80 CEAncient Rome
The Colosseum Is Inaugurated
Begun under the emperor Vespasian, the Flavian Amphitheatre — the Colosseum — was inaugurated by his son Titus in 80 CE with a hundred days of games. The vast stone arena could hold tens of thousands of spectators for gladiatorial combat, animal hunts, and public spectacles.
Reputable source · 2 sources - 117 CEAncient Rome
The Empire at Its Greatest Extent under Trajan
Under the emperor Trajan, whose conquests included Dacia and, briefly, Mesopotamia, the Roman Empire reached its greatest territorial extent by 117 CE, stretching from Britain to the Persian Gulf.
Reputable source - c. 122 CEAncient Rome
Hadrian's Wall Is Begun
Around 122 CE, following the emperor Hadrian's visit to Britain, the Romans began building a stone wall running some 73 miles (120 km) coast to coast across northern Britain to mark and guard the frontier.
Reputable source · 2 sources - 165–180 CEAncient Rome
The Antonine Plague
A devastating epidemic — likely smallpox — swept the Roman Empire from about 165 CE, carried by armies returning from the east. Documented by the physician Galen, it killed millions over the following years during the reign of Marcus Aurelius.
Reputable source - 235–284 CEAncient Rome
The Crisis of the Third Century
After the murder of the emperor Severus Alexander in 235 CE, the Empire fell into a half-century of near-collapse: dozens of short-lived 'barracks emperors,' repeated invasions, plague, economic breakdown, and the temporary breakaway of the Gallic and Palmyrene empires.
Reputable source - 284 CEAncient Rome
Diocletian and the Tetrarchy
Coming to power in 284 CE, Diocletian ended the crisis with sweeping reforms. He divided rule of the Empire among four emperors — two senior Augusti and two junior Caesars — in a system known as the Tetrarchy, and reorganized the army, provinces, and taxation.
Reputable source - Classic Period, 250–900 CEThe Maya Civilization
Divine Kings and the Maya City-States
The Maya were never a single empire but a mosaic of rival city-states, each ruled by a k'uhul ajaw, or 'holy lord,' believed to be semi-divine. Kings recorded their reigns and victories on towering carved stone stelae.
Reputable source - flourished c. 300–850 CEThe Maya Civilization
Tikal, Jewel of the Petén
In the rainforest of northern Guatemala, Tikal — known to the Maya as Mutul — grew into one of the greatest cities in the Americas, its plazas ringed by soaring temple-pyramids rising above the jungle canopy.
Reputable source - 312–313 CEAncient Rome
Constantine, the Milvian Bridge, and the Edict of Milan
In 312 CE Constantine defeated his rival Maxentius at the Battle of the Milvian Bridge — by tradition after a vision of the cross — and the following year he and Licinius issued the Edict of Milan, granting toleration to Christianity and ending its persecution.
Reputable source - 330 CEAncient Rome
The Founding of Constantinople
In 330 CE Constantine dedicated a new imperial capital on the site of the Greek city of Byzantium, on the Bosporus. He called it 'New Rome,' but it soon took his own name — Constantinople.
Reputable source - 378 CEThe Maya Civilization
Teotihuacan and the Entrada
In 378 CE, according to Tikal's own inscriptions, warriors linked to the great central-Mexican city of Teotihuacan arrived at Tikal. Its king died the same day, and a new dynasty tied to Teotihuacan took power — an event scholars call the 'Entrada.'
Reputable source - 380 CEAncient Rome
Christianity Becomes the State Religion
In 380 CE the emperor Theodosius I issued the Edict of Thessalonica, making Nicene Christianity the official religion of the Roman Empire. Further laws soon restricted and then banned public pagan worship.
Reputable source - 410 CEAncient Rome
The Visigoths Sack Rome
In August 410 CE the Visigoths under King Alaric entered Rome and sacked it over three days — the first time the city had fallen to a foreign enemy in some 800 years, though by then it was no longer the imperial capital.
Reputable source - founded 426 CEThe Maya Civilization
Copán and the Dynasty of Yax K'uk' Mo
In 426 CE, K'inich Yax K'uk' Mo founded a dynasty at Copán, in modern Honduras — the southernmost great Maya city. Its rulers filled it with the finest sculpture of the Maya world, including a famous stairway inscribed with thousands of glyphs.
Reputable source - 476 CEAncient Rome
The Fall of the Western Roman Empire
In 476 CE the Germanic commander Odoacer deposed the young emperor Romulus Augustulus and, rather than name a successor, sent the imperial regalia to Constantinople and ruled Italy as king. No emperor reigned in the West thereafter.
Reputable source · 2 sources - 6th–8th centuries CEThe Maya Civilization
Tikal and Calakmul: The Superpower Rivalry
For generations Tikal and its great northern rival Calakmul waged a struggle for supremacy, drawing lesser cities into two vast networks of alliance. Calakmul engineered Tikal's defeat in 562, but Tikal roared back to triumph in 695.
Reputable source - Pakal reigned 615–683 CEThe Maya Civilization
Palenque and Pakal the Great
In the western city of Palenque, K'inich Janaab' Pakal reigned for nearly 70 years and raised exquisite temples. His tomb, deep inside the Temple of the Inscriptions, was discovered intact in 1952, its lid carved with a masterpiece of Maya art.
Reputable source - Classic PeriodThe Maya Civilization
The Mesoamerican Ball Game
The Maya played a ritual ball game on stone courts, driving a heavy rubber ball with their hips through the effort of two teams. More than sport, it re-enacted myth and cosmic struggle — and could end in the sacrifice of the losers.
Reputable source - Classic PeriodThe Maya Civilization
Maya Astronomy, Mathematics, and the Calendar
Maya priests tracked the sun, moon and Venus with remarkable precision and used a base-20 mathematics with a symbol for zero. They kept interlocking calendars, including the Long Count, which measured time in vast cycles of thousands of years.
Reputable source - Classic PeriodThe Maya Civilization
Maya Religion and the Popol Vuh
The Maya saw the world as saturated with k'uh, sacred energy, and maintained the cosmos through ritual — including bloodletting and human sacrifice. Their mythology survives in the Popol Vuh, which tells of the creation and the Hero Twins who outwit the lords of the underworld.
Reputable source · 2 sources - Classic PeriodThe Maya Civilization
Maya Art and Architecture
Maya builders raised step-pyramids, palaces and observatories using corbelled vaults, adorning them with sculpture, painted stucco and glyphs. Their painters and potters produced vivid murals and finely modelled figurines of astonishing realism.
Reputable source - c. 800–900 CEThe Maya Civilization
The Classic Maya Collapse
Over the 9th century, one after another the great southern lowland cities — Tikal, Palenque, Copán — stopped raising monuments and were abandoned. The population fell dramatically as the Classic Maya world unravelled.
Reputable source - c. 900–1450 CEThe Maya Civilization
Chichén Itzá and the Postclassic
As the southern cities fell, power shifted north to the Yucatán, where Chichén Itzá rose with its great pyramid of Kukulcán and sacred cenote. After Chichén declined around 1200, Mayapán became the last major Maya capital.
Reputable source - c. 12th–14th centuries CEThe Aztec Empire
The Migration from Aztlán
By their own tradition, the Mexica set out from a mythical northern homeland called Aztlán — the source of the name 'Aztec.' Their god Huitzilopochtli, carried as an idol by his priests, is said to have guided them on a long migration south into the Valley of Mexico.
Reputable source · 2 sources - traditionally c. 1325 CEThe Aztec Empire
The Founding of Tenochtitlan
According to legend, the wandering Mexica were told to build their city where they saw an eagle perched on a cactus. They found the sign on a swampy island in Lake Texcoco and founded Tenochtitlan there — the future Aztec capital.
Reputable source · 2 sources - c. 1372–1427 CEThe Aztec Empire
Vassals of Azcapotzalco
For their first century the Mexica were not masters but subjects, paying tribute to the powerful Tepanec city of Azcapotzalco and serving as its mercenaries. Their first tlatoani (ruler), Acamapichtli, governed Tenochtitlan under Tepanec overlordship.
Reputable source - 1428 CEThe Aztec Empire
The Tepanec War and the Triple Alliance
In 1428, under the ruler Itzcoatl, Tenochtitlan joined Texcoco and the rebel city of Tlacopan to crush their former overlord Azcapotzalco. The victors formed a Triple Alliance and shared out the tribute of conquered lands.
Reputable source · 2 sources - ruled Texcoco from 1431 CEThe Aztec Empire
Nezahualcoyotl, Poet-King of Texcoco
Netzahualcoyotl became tlatoani of Texcoco, the Aztec Empire's second city, in 1431. Renowned as a poet, philosopher, lawgiver and engineer, he is remembered for verses meditating on life and mortality and for great public works.
Reputable source - reigned 1440–1469 CEThe Aztec Empire
Moctezuma I and the Expansion of Empire
Motecuhzoma I (Moctezuma the Elder) reigned from 1440 to 1469, launching a sweeping campaign of conquest that carried Aztec armies far beyond the Valley of Mexico and turned the young alliance into a true tribute empire.
Reputable source - Aztec periodThe Aztec Empire
Chinampas: The Floating Gardens
The Aztecs fed their vast capital with chinampas — artificial islands of mud and vegetation built up in the shallow lakebed. These intensively farmed 'floating gardens' produced several harvests a year of maize, beans, squash and more.
Reputable source · 2 sources - c. 1450–1454 CEThe Aztec Empire
The Great Famine of 1450
Around 1450 a devastating famine struck central Mexico. For the Aztecs, such disasters confirmed that the gods hungered, and the crisis is linked to an intensification of human sacrifice meant to keep the gods appeased and the world in balance.
Reputable source · 2 sources - Aztec periodThe Aztec Empire
Human Sacrifice and the Flower Wars
To 'feed' the gods, the Aztecs practised ritual human sacrifice, most victims being captured warriors. They even staged the xochiyaoyotl, or 'Flower Wars' — ritualized battles fought largely to take live captives for the sacrificial stone rather than to seize territory.
Reputable source · 2 sources - Aztec periodThe Aztec Empire
Aztec Religion and the Fifth Sun
The Aztecs worshipped a vast pantheon led by Huitzilopochtli (sun and war), Tlaloc (rain), and Quetzalcoatl, the feathered serpent. They believed they lived in the age of the Fifth Sun, an unstable world that only human sacrifice could keep from collapsing into darkness.
Reputable source · 2 sources - 1473 CEThe Aztec Empire
Axayacatl and the Conquest of Tlatelolco
In 1473 the ruler Axayacatl conquered Tlatelolco, Tenochtitlan's sister city on the same lake and home to the empire's greatest market. Its independence was extinguished and it was absorbed directly into the Aztec capital.
Reputable source - rebuilt over the 14th–16th centuriesThe Aztec Empire
The Templo Mayor: Heart of the Aztec World
The Templo Mayor was a great twin-shrined pyramid at the sacred centre of Tenochtitlan, dedicated jointly to Huitzilopochtli, god of sun and war, and Tlaloc, god of rain. Rebuilt ever larger by successive rulers, it was the symbolic centre of the Aztec cosmos.
Reputable source - reigned 1486–1502 CEThe Aztec Empire
Ahuitzotl and the Aztec Golden Age
Ahuitzotl reigned from 1486 to 1502, pushing the empire to its greatest extent through relentless conquest. His huge building projects and victories were celebrated with mass sacrifices — his reign is often called the Aztec golden age.
Reputable source - 1487 CEThe Aztec Empire
The Dedication of the Templo Mayor
In 1487 Ahuitzotl re-dedicated and enlarged the Templo Mayor, the great temple at the heart of Tenochtitlan. The celebration is infamous for a mass sacrifice of captives said to have lasted four days.
Reputable source - Aztec periodThe Aztec Empire
Aztec Society: Nobles, Commoners, and Slaves
Aztec society was sharply stratified between nobles (pipiltin) and commoners (macehualtin), with an enslaved class below. Children were schooled by the state — commoners at the telpochcalli, nobles at the elite calmecac — an unusually organized system of universal education.
Reputable source - Aztec periodThe Aztec Empire
Aztec Art and Craft
Aztec artisans produced powerful stone sculpture, intricate gold and turquoise mosaic work, and dazzling featherwork — capes and headdresses of iridescent tropical plumes prized above almost any other treasure.
Reputable source - Aztec periodThe Aztec Empire
The Aztec Calendar
The Aztecs kept two interlocking calendars: a 260-day sacred cycle (tonalpohualli) and a 365-day solar year (xiuhpohualli). Together they meshed into a 52-year 'Calendar Round,' whose completion was marked by the great New Fire Ceremony to renew the world.
Reputable source - Aztec periodThe Aztec Empire
The Great Market and the Pochteca
Aztec commerce centred on huge markets, the greatest at Tlatelolco, where every kind of good was traded. Long-distance trade was run by the pochteca, a hereditary merchant class who dealt in luxuries like feathers, gold, turquoise, jade and cacao and also served the state as spies.
Reputable source · 2 sources - late 15th–early 16th century CEThe Aztec Empire
The Sun Stone
The Aztecs carved the Sun Stone (or Calendar Stone), a monumental basalt disc 3.6 metres across and weighing some 25 tons. Its dense imagery depicts the five consecutive 'suns,' or world-ages, of Aztec cosmology around a central face.
Reputable source - c. 1500 CEThe Aztec Empire
Tenochtitlan: The City on the Lake
By 1500 Tenochtitlan was an island metropolis of perhaps 200,000 people, linked to the shore by great causeways and supplied with fresh water by an aqueduct. Its canals, plazas and whitewashed temples astonished the Spanish who later saw it.
Reputable source - reign began 1502 CEThe Aztec Empire
Moctezuma II, the Last Great Tlatoani
Motecuhzoma II (Montezuma) became ruler in 1502, inheriting an empire at its zenith. A proud and pious sovereign who further exalted the monarchy, he would be the last Aztec emperor to rule a free Tenochtitlan.
Reputable source - 1519 CEThe Aztec Empire
Cortés Lands at Veracruz
In 1519 the Spanish conquistador Hernán Cortés landed on the Gulf coast, founded a settlement at Veracruz, and — to prevent retreat — famously scuttled his own ships. With a few hundred men he began marching inland toward the Aztec capital.
Reputable source - from 1519 CEThe Aztec Empire
La Malinche, the Interpreter
Early in the campaign Cortés acquired Malintzin — La Malinche — an enslaved Nahua woman who spoke both Nahuatl, the Aztec language, and Maya. As his interpreter and adviser she became indispensable to the conquest, and remains one of the most divisive figures in Mexican history.
Reputable source - 1519 CEThe Aztec Empire
The Tlaxcalan Alliance
Marching inland, the Spanish first fought and then allied with Tlaxcala, an independent state that had long resisted Aztec domination. Tens of thousands of Tlaxcalan warriors joined Cortés against their hated enemy in Tenochtitlan.
Reputable source · 2 sources - November 1519 CEThe Aztec Empire
Cortés Enters Tenochtitlan; Moctezuma Seized
In November 1519 Moctezuma II received Cortés and his men peacefully into Tenochtitlan, lodging them in a palace. Within days the Spanish seized the emperor and held him hostage, ruling the city through him.
Reputable source · 2 sources - May 1520 CEThe Aztec Empire
The Massacre in the Great Temple
While Cortés was away on the coast, his deputy Pedro de Alvarado attacked celebrants at a religious festival in the sacred precinct, slaughtering unarmed members of the Aztec nobility. The atrocity turned the city against the Spanish.
Reputable source · 2 sources - June 30, 1520 CEThe Aztec Empire
Moctezuma's Death and La Noche Triste
As the city rose in revolt, Moctezuma II died — according to Spanish accounts, stoned by his own people. On the night of 30 June 1520, the 'Noche Triste' ('Sad Night'), Cortés and his men fled Tenochtitlan across the causeways, losing perhaps half their force and most of their plundered gold.
Reputable source · 2 sources - 1520 CEThe Aztec Empire
The Smallpox Epidemic
In 1520 smallpox — brought unknowingly from the Old World — swept through Tenochtitlan, a population with no immunity. It killed vast numbers, including the emperor Cuitlahuac who had led the revolt, and fatally weakened the city's defence.
Reputable source - May–August 1521 CEThe Aztec Empire
Cuauhtémoc and the Siege of Tenochtitlan
The young Cuauhtemoc became the last Aztec emperor and led a fierce defence. In 1521 Cortés returned with thousands of indigenous allies and launched purpose-built brigantines onto the lake, beginning a brutal siege of Tenochtitlan that lasted some 93 days.
Reputable source · 2 sources - August 13, 1521 CEThe Aztec Empire
The Fall of Tenochtitlan
Starving, ravaged by disease and overwhelmed, Tenochtitlan finally fell on 13 August 1521. The emperor Cuauhtemoc was captured trying to flee across the lake, ending the Aztec Empire.
Reputable source - 1521–1524 CEThe Aztec Empire
The Founding of Mexico City and New Spain
The Spanish razed Tenochtitlan and built their own capital, Mexico City, directly on its ruins, using the stones of Aztec temples for churches and palaces. Cortés became the first ruler of the new colony of New Spain.
Reputable source · 2 sources - 1524–1697 CEThe Maya Civilization
The Spanish Conquest of the Maya
Spanish conquistadors invaded the Maya lands beginning in 1524. Because the Maya were fragmented into many small states, their conquest was piecemeal and fiercely resisted — the last independent Maya kingdom, Nojpetén, did not fall until 1697.
Reputable source - compiled 1545–1577 CEThe Aztec Empire
The Florentine Codex: How We Know
Much of what we know of the Aztecs comes from the Florentine Codex, compiled by the Franciscan friar Bernardino de Sahagún with Nahua elders and scribes. Its twelve books, written in Nahuatl and Spanish and richly illustrated, form an encyclopedia of Aztec religion, society and history.
Reputable source - 1839–1841 CEThe Maya Civilization
Rediscovering the Maya
In 1839–41 the American explorer John Lloyd Stephens and the artist Frederick Catherwood hacked through the jungle to document ruined Maya cities. Catherwood's stunning drawings stunned the world and launched the modern study of the Maya.
Reputable source - the late 1970s CEThe Aztec Empire
Rediscovering the Templo Mayor
For centuries the Templo Mayor lay buried under Mexico City. In the late 1970s, work in the heart of the capital uncovered the immense carved stone of the goddess Coyolxauhqui, prompting a major excavation that laid bare the Aztecs' greatest temple and thousands of buried offerings.
Reputable source - the present dayThe Maya Civilization
The Maya Today
The Maya never disappeared. Millions of Maya people still live across Guatemala, Mexico, Belize and Honduras, speaking Mayan languages and keeping ancient traditions alive — even as archaeologists finally learned to read their ancestors' glyphs.
Reputable source