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 US military and US Marshals during the Pullman Strike, President Grover Cleveland put reconciliation with the labor movement as a top political priority. Fearing further conflict, legislation making Labor Day a national holiday was rushed through Congress unanimously and signed into law a mere six days after the end of the strike.
How ever you celebrate ~ have a great week-end!
http://en.wikipedia.org/wiki/Labor_Day