Flag Day (United States) holiday. William T. Kerr, a native of Pittsburgh and later a resident of Yeadon, Pennsylvania, founded the American Flag Day Association of Western Pennsylvania in 1888, and became the national chairman of the American Flag Day Association one year later, serving as such for fifty years. He attended President Harry S. Truman's 1949 signing of the Act of Congress that formally established the observance. In 1889, the principal of a free kindergarten, George Bolch, celebrated the Revolution and celebrated Flag Day, as well. In 1893, Elizabeth Duane Gillespie, a descendant of Benjamin Franklin and the president of the Colonial Dames
Labor Day the Knights of Labor, which organized the first parade in New York City. In 1887, Oregon was the first state of the United States to make it an official public holiday. By the time it became an official federal holiday in 1894, thirty states in the United States officially celebrated Labor Day. Canada's Labour Day is also celebrated on the first Monday of September. More than 80 countries celebrate International Workers' Day on May 1 – the ancient European holiday of May Day. (May Day was chosen by the Second Internationale of socialist and communist parties to commemorate the Haymarket