1428 CEReputable source · 2 sourcesWell documented
The Tepanec War and the Triple Alliance
On the timeline · around 1428 CE ·
What happened
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.
Why it matters
The Triple Alliance of 1428 is effectively the birth of the Aztec Empire. Tenochtitlan soon came to dominate the alliance, its ruler becoming the supreme 'high king.'
Sources
- World History Encyclopedia. Aztec Civilization · Reputable source
- World History Encyclopedia. Texcoco · Reputable source