What happened that changed the working conditions in factories in the late 1800s and early 1900s

Many workers in the late 1800s and early 1900s spent an entire day tending a machine in a large, crowded, noisy room. Others worked in coal mines, steel mills, railroads, slaughterhouses, and in other dangerous occupations. Most were not paid well, and the typical workday was 12 hours or more, six days per week.

In the late 1800s, workers organized unions to solve their problems. Their problems were low wages and unsafe working conditions. First, workers formed local unions in single factories.

Explanation:

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