* Steelmaking (honorable mention) 800 BC - 1500 AD Haya people of Tanzania (1 Jan 800 Jahr v. Chr. – 1 Jan 1500 Jahr)

Beschreibung:

Steel is an alloy of iron and carbon.
Archaeologist Peter R. Schmidt discovered evidence through a combination of archaeology and oral tradition that the Haya had been smelting iron ore to make carbon steel for around 2300–2000 years.[7][11][37][38] This discovery happened when Schmidt was working at the village of Kataruka. Elders at Kataruka informed Schmidt that their ancestors had smelted iron underneath a sacred shrine tree called Kaiija ("the place of the forge").[38] Curious to verify their own history, elders asked Schmidt to conduct an excavation underneath the sacred shrine tree.[39] Results of this excavation led to the discovery of an iron furnace carbon-dated to the 1st millennium BC.
Invented: Independently

Steel making developed in Europe during the 19th century.

https://en.wikipedia.org/wiki/Haya_people

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