Cinco de Mayo ("The Fifth of May" in Spanish) is a national holiday in Mexico which is also widely celebrated in the United States. It commemorates the victory of Mexican forces led by General Ignacio Zaragoza over the French occupational forces in the Battle of Puebla on 05 May 1862.

Mother's Day is a day honoring mothers, celebrated on various days in many places around the world. Mothers often receive gifts on this day.

The modern Mother's Day holiday was created by Anna Jarvis, as a day to honor mothers and motherhood; especially within the context of families, and family relationships. It is now celebrated on various days, in many parts of the world. Father's Day is a corresponding holiday honoring fathers.

In the United States, Armed Forces Day is celebrated on the third Saturday in May. The day was created in 1949, and was a result of the consolidation of the military services in the Department of Defense. It was intended to replace the separate Army, Navy, Air Force, Marine Corps, and Coast Guard Days, but observance of these days, especially within each particular service, continues to this day.

Memorial Day, originally called Decoration Day, is a day of remembrance for those who have died in our nation's service. There are many stories as to its actual beginnings, with over two dozen cities and towns laying claim to being the birthplace of Memorial Day. There is also evidence that organized women's groups in the South were decorating graves before the end of the Civil War: a hymn published in 1867, "Kneel Where Our Loves are Sleeping" by Nella L.