September 5, 1882
The first Labor Day is observed on this date in New York City, called for by the Central Labor Union of New York. In 1894, after sending in the Army and U.S. Marshals to break the Pullman Strike, President Grover Cleveland sought appeasement with organized labor. Legislation making Labor Day a national holiday was rushed through Congress unanimously and signed into law by Cleveland six days after the strike ended.