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jul 28, 1886 - Revuelta de Chicago (Estados Unidos)

Description:

Se establecen las 8 horas de trabajo

Added to timeline:

Revisión histórica de la salud ocupacional y la seguridad industrial

ByDaniel Obando

7 Dec 2017

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0

2653

Date:

jul 28, 1886

Now

~ 139 years ago

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