May Day march in New York City
March in New York City on Workers' Day, May 1, 1909.
May Day
international observance
Also known as: International Workers’ Day, Workers’ Day
May Day, day commemorating the historic struggles and gains made by workers and the labor movement, also called International Workers’ Day. May Day is observed on May 1 in many countries and is a public holiday in countries including India, South Africa, China, Germany, France, Spain, Portugal, and Greece. In the United States and Canada, a similar observance known as Labor Day occurs on the first Monday of September. May Day finds its origin in the...