Carbon
Steel Artifacts

"Àwọn Ohun Ìjìnlẹ̀ Tí Wọ́n Ṣe Nípa Kọ́ọ́là Káàbọ̀nì" YORUBA

"Izinto Zokwakheka Ze-Steel Yenkathi" ZULU

"Izinto Zobuciko ze-Steel ye-Carbon" XHOSA

1st millennium BCE to 19th century CE

Country Tanzania

Timeline 1st millennium BCE to 19th century CE

Current state Knowledge and techniques largely preserved through oral traditions and archaeological findings. Some traditional practices continue. Artifacts in museums and collections.

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High-temperature furnaces (up to 1,800°C) used to smelt iron and produce high-quality steel with bellows and carbon addition. Steel used for tools, weapons, and other artifacts.

Testimony

Ingenuity, technical expertise, and scientific knowledge of African metallurgists. Challenges misconception of technological inferiority and highlights contributions to global metallurgical practices. Demonstrates deep understanding of materials science and engineering principles.

“

Rich heritage of innovation, craftsmanship, and scientific advancement. Source of pride and inspiration for Africans, countering narratives that marginalized African achievements. Legacy inspires contemporary scientists, engineers, and artisans.

Academic source

SAIMM: Pre-colonial mining in southern Africa<br>Pitt Rivers Museum: African Metalwork<br>Oxford Research Encyclopedia: Precolonial Iron Production in the Great Zimbabwe Hinterland<br>ASBMB Today: Great achievements in science and technology in ancient Africa

Citations

[1] https://www.saimm.co.za/Journal/v100n01p049.pdf [2] https://prm.web.ox.ac.uk/files/metalworkingwebpdf [3] https://oxfordre.com/africanhistory/display/10.1093/acrefore/9780190277734.001.0001/acrefore-9780190277734-e-793?d=%2F10.1093%2Facrefore%2F9780190277734.001.0001%2Facrefore-9780190277734-e-793&p=emailAgGjfZJjVt5o. [4] https://www.asbmb.org/asbmb-today/science/020113/great-achievements-in-stem-in-ancient-africa

Archive record

AFR·HER·0011

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Other traditions of Tanzania

The tradition lives on many forms.

Iron Smelting Sites in Zanzibar and Pemba

7th-15th centuries CE

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Living Traditions Carbon Steel Artifacts AFR·HER·0011