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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

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ByDalynn Paredes
27 Oct 2017
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664

Date:

sep 20, 1000 BC
Now
~ 3028 years ago

Images:

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