Find out about the ancient roots and modern history of Mother's Day, which is celebrated on the second Sunday in May in the United States.

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As World War II raged in Europe and North Africa, the United States celebrated its Independence Day in July 1941. It was looking increasingly likely that the U.S. would enter the war, and President Franklin Roosevelt delivered an address that equivocated America's own struggle for freedom in the 1700s with the struggle faced by her allies overseas.

Sandra Day O'Connor, who became the first woman on the U.S. Supreme Court when she was appointed by President Ronald Reagan in 1981, speaks about her views on holy matrimony.

The Migrant Mother image is one of a series of photographs that Dorothea Lange made in February or March 1936 in Nipomo, California.

HISTORY salutes the American soldier.

Take a look at the holiday marking the official beginning of summer and America's most solemn occasion.

In 1894, Grover Cleveland made Labor Day a federal holiday after a failed attempt to break up a railroad strike.