LABOR DAY IN UNITED STATES IS PUBLIC HOLIDAY CELEBRATED THE FIRST MONDAY OF SEPTEMBER EVERY YEAR. 

BEGINING CENTURY XIX THE TRADE UNION AND LABOR MOVEMENTS ORDERED FIRST PARADE IN NEW YORK CITY.  IN 1880 DECADE DIFFERENT GROUPS TRADE UNIONISTS SELECTED SEVERAL DAYS FOR CELEBRATE THE LABOR DAY. IN 1887. OREGON WAS FIRST STATE IN CELEBRATE OFFICIAL HOLIDAY DAY. IN 1894 THIRTY STATES HAVE CELEBRATED OFFICIAL FEDERAL HOLIDAY.