Monday the 4th is Labor Day in the U.S. Most other countries honor workers on May 1st. In fact, International Workers' Day was first celebrated on May Day in Chicago in 1886. But as you can see in the picture above, the first September Labor Day Parade took place in New York a few years before that. You can take the quiz below to learn more about this holiday.
You can learn more about this distinctly American holiday here, at the U.S. Department of Labor's page about it.