Before 1800 BCE · Africanapproximate
Africans reached iron without passing through a copper age
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Metallurgy is usually taught as a ladder. People start with copper, which melts at a low temperature and sometimes shows up as visible metal in rock, and only later work out that fiercer heat will pull iron out of ore. Across large parts of Africa the ladder has its rungs in a different order. In the earliest ironworking areas, in the Central African Republic and across most of the continent below the Sahara, iron was known and used before copper was. Prior copper smelting cannot be the explanation for the African discovery, because there was no prior copper smelting. Something else supplied the knowledge, and the likeliest candidate is ceramics. Women had been firing clay in high heat for thousands of years by then, and the control of temperature and airflow that pottery demands is most of what a smelting furnace needs. The African road to iron went through the kiln. The Bronze Age that world history courses treat as a universal stage never happened here.
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