Why were there so many strikes between the 1870s and the 1890s?

There were so many strikes between 1870s and 1890s because workers' wages, hours of labour and working conditions were being contested for between the employers and the Union.

Explanation:

There were so many strikes between 1870s and 1890s because workers' wages, hours of labour and working conditions were being contested for between the employers and the Union.

During this period, some of the strikes includes the following:

1. The Homestead strike 1892

2. The Pullman strike 1894

3. Anthracite Coal strike 1902

This period is also known as Gilded Age.