国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 12月29日 01時23分

This badge was worn by labor leader John L. Lewis at the 1936 United Mine Workers of America convention.
Today in 1869: America celebrates its first Labor Day. In 1884, the American Federation of Labor designated the first Monday of September for annual observance.

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