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1 gen 200 anni a. C. - W: First known use of smelted iron to create steel.

Descrizione:

World: India was the first known to smelt iron with carbon to create steel, used to make swords, knives, and sewing needles.

Aggiunto al nastro di tempo:

History of Mathematics 2019

16 lug 2019

2

0

1440

Data:

1 gen 200 anni a. C.

Adesso

~ 2227 years ago

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