Bosses across the United States have the chance to support, thank and reward workers on Employee Appreciation Day on the first Friday in March.

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St Patrick's Day, on March 17, remembers one of Ireland’s patron saints, St Patrick. It largely celebrates Irish-American culture in the United States.

There are two equinoxes every year, in March and September, when the Sun shines directly on the equator, and the length of night and day are nearly equal.

Many Christians in the United States remember Jesus’ triumphal entry into Jerusalem on Palm Sunday, which marks the beginning of Holy Week. This day is also on the Sunday before Easter Sunday.

Passover (Pesach) generally lasts for eight days in the United States. Many Jewish people spend the Passover period with family members or close friends.

March 29 is National Vietnam War Veterans Day in the United States. First observed in 2012, it honors the US military members who served during the Vietnam War (1955-1975).