Answer :

Knights of Labor an American Labor Federation, started in 1869, began as a secret society for tailors.

The Knights of Labor was founded as a secret society of tailors in Philadelphia in 1869. It grew in size and prominence in the early days of the American labor movement from the mid-to-late-1800s and played a key role in the Great Railroad Strike of 1877.

The AFL focused on winning economic benefits for its members through collective bargaining. As a federation, it represented several national craft unions that each retained autonomous operations. The Knights, by contrast, represented both craft and unskilled workers in a single national union.

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