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16 h 28 avr. 1850 ans - Discovery of how to make efficient steel

Description:

| WHO: | both Henry Bessemer in England and William Kelly in US | HOW: | blasting air through molten iron makes good steel

Ajouté au bande de temps:

AP US History

ByZoe
10 mai 2018
1
0
1508

Date:

16 h 28 avr. 1850 ans
Maintenaint
~ Il y a 175 ans
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