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sep 20, 1000 BC - Abacus and steel

Description:

The abacus is used as an everyday method of calculation by Phoenicians and Babylonians

Iron reheated with carbon is found to be much harder, being transformed into steel

Added to timeline:

Evolution Timeline

ByDalynn Paredes
27 Oct 2017
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0
688

Date:

sep 20, 1000 BC
Now
~ 3029 years ago

Images:

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