What are the origins of Labor Day

Labor Day, celebrated in the United States and also in Canada (spelled Labour Day), have been held on the first Monday in September. The holiday originates in 1887, where in Oregon it was first celebrated. However, its roots are older and related to the wider international efforts by workers to celebrate a holiday. These worker movements were also affiliated with leftist political action, which has shaped the choosing of the date in the United States. The complex, often political history, of Labor Day has also shifted in recent periods.