A Brief History of Labor Day:

On June 26, the American Railroad Union, led by Eugene V. Debs, called for a boycott of all Pullman railway cars, crippling railroad traffic nationwide. To break the Pullman strike, the federal government under President Grover Cleveland dispatched troops to Chicago, unleashing a wave of riots that resulted in the deaths of more than a dozen workers.

In the wake of this massive unrest and in an attempt to repair ties with American workers, Congress passed an act making Labor Day a legal holiday in the District of Columbia and the territories. On June 28, 1894, President Grover Cleveland signed it into law. More than a century later, the true founder of Labor Day has yet to be identified.

Many credit Peter J. McGuire, cofounder of the American Federation of Labor, while others have suggested that Matthew Maguire, a secretary of the Central Labor Union, first proposed the holiday.