The first Lador Day was celebrated on tuesday September 5, 1882. Matthew Maguire proposed the holloday in 1882. In 1884 the first Monday of September is selected as the holloday. In 1885 Lador Day was celebrated in many industrial centers of the cuntry. Nation tirbute on Lader Day to the creator of much of the nation strenght, freedom, and leeder ship.
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http://www.dol.gov/opa/aboutdol/laborday.htm