
"Labor Day" is a United States federal holiday observed on the first Monday in September and in 2011, it is on September 5.The first Labor Day in the United States was observed on September 5, 1882, by the Central Labor Union of New York. It became a federal holiday in 1894, when, following the deaths of a number of workers at the hands of the U.S. military and U.S. Marshals during the Pullman Strike, President Grover Cleveland put reconciliation...