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c. 9th century CEPeer-reviewed · 2 sourcesDebated

Igbo-Ukwu Casts the Earliest Bronze in West Africa

A ninth-century Igbo culture in the eastern forests produces lost-wax metalwork centuries before Ife or Benin

On the timeline · around c. 9th century CE · Ancient and Early KingdomsAncient and Early KingdomsMedieval States and EmpiresIgbo-Ukwu Casts the Earliest Bronze in West Africa300 CE400 CE500 CE600 CE700 CE800 CE

Quick facts

Approximate date
c. 9th century CE (radiocarbon c. 850 CE; range debated)
Location
Igbo-Ukwu, Anambra State, southeastern Nigeria
Excavator
Thurstan Shaw, 1959 and 1964
Technique
Lost-wax casting of bronze and leaded bronze

What happened

At Igbo-Ukwu, in the eastern forests of what is now Anambra State, an Igbo culture produced ritual vessels, regalia, and ornaments in cast bronze and leaded bronze that are among the earliest known metalwork of their kind in West Africa. The objects first surfaced by accident in 1938 when a resident dug a cistern in his compound; systematic excavation by the archaeologist Thurstan Shaw in 1959 and 1964 recovered more than 700 metal and iron artifacts plus roughly 165,000 glass and carnelian beads. Radiocarbon dating placed the material around 850 CE, which would make Igbo-Ukwu the earliest known bronze casting in the region, though later analysis of the radiocarbon evidence has widened the possible range and some scholars now favor an 11th to 12th century date. The smiths worked in the lost-wax technique with a level of technical control, including cast sheets a fraction of a millimeter thick, that specialists have called without parallel for its time.

Why it matters

Igbo-Ukwu shows that sophisticated bronze casting existed in the Nigerian forest belt centuries before the more famous traditions of Ife and Benin, and that it developed using local copper and lead sources rather than through contact with Europe or the Islamic north. It rewrote the assumed timeline of West African metalwork and stands as physical evidence of an organized, wealthy, long-distance-trading society in Igboland well over a thousand years ago.

How we know

The Igbo-Ukwu artifacts are physical objects held at the National Museum in Lagos, excavated and catalogued by Thurstan Shaw, and dated by radiocarbon analysis of associated organic material, with the dating range and its uncertainties debated in later peer-reviewed archaeological review.

Sources

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Part of a timelineHistory of Nigeria26 events · Iron Age sculptors, bronze-casting kingdoms, an amalgamation drawn up by a British governor, and Africa's most populous nationView all →
Igbo-Ukwu Casts the Earliest Bronze in West Africa · History of Nigeria · SourcedStory