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August 1, 2025
2372906
199811
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oct 17, 1856 - Age of steel

Description:

Bessemer process - improved efficiency of steel production.
used a blast of hot air to purify molten iron and convert it to steel.

Added to timeline:

19 Dec 2018
0
0
310

Date:

oct 17, 1856
Now
~ 168 years ago