五一国际劳动节，是世界上绝大多数国家的劳动节。节日是为了纪念美国芝加哥城的工人大罢工，1889年的第二国际成立大会上宣布将每年的5月1日定为国际劳动节。劳动节刚开始并没有进入中国，直到1949年12月中国政府才作出决定，将5月1日确定为劳动节。
Simple show explains Labor Day.
It all started in the 19th century, overworked and exhausted laborers were fed up and demanded better treatment.
In Canada, laborers marched to their Prime Minister's doorstep and asked for their right to form unions. Oh, Canada.
The March was victorious- they celebrated better working conditions with an annual parade.
Peter J. McGuire, an American labor leader was invited and thought to bring that spirit to America and what a success it was.
In New York City, protesters assembled to fight against poor labor conditions.
The movement quickly spread across America.
Workers gathered for picnics, concerts and speeches, rallying for 8 hour work days and a Labour holiday.
Oregon was the first state to officially recognize the holiday.
But it wasn't until 12,000 government forces were sent to quell a strike, and two railway workers were tragically killed that pressure mounted from the American workforce and Labor Day was put on the federal calendar.
