What did the knights of labor union do

Knights of Labor. Knights of Labor (K of L), officially Noble and Holy Order of the Knights of Labor, was the largest and one of the most important American labor organizations of the 1880s. Its most important leader was Terence V. Powderly.

They were known as the largest and one of the most important American labor organizations of the 1880s. Its most important leader was Terence V. Powderly.