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degree-day

(Encyclopedia)degree-day, a unit of measure used to estimate the fuel and power requirements in heating and cooling a building; it is equal to a difference of 1 degree between the outdoor daily average temperature ...

Thanksgiving Day

(Encyclopedia)Thanksgiving Day, national holiday in the United States commemorating the Pilgrims' celebration of the harvest reaped by the Plymouth Colony in 1621, after a winter of great starvation and privation. ...

Day, Doris

(Encyclopedia)Day, Doris, 1922–2019, American film actress, b. Cincinnati as Doris Mary Ann Kappelhoff. Day is best known for her wholesome, girl-next-door roles. She began her career as a 1940s band singer, and ...

May Day

(Encyclopedia)May Day, first day of May. Its celebration probably originated in the spring fertility festivals of India and Egypt. The festival of the Roman goddess of spring, Flora, was celebrated from Apr. 28 to ...

Armistice Day

(Encyclopedia)Armistice Day: see Veterans' Day.

Decoration Day

(Encyclopedia)Decoration Day: see Memorial Day. ...

Dominion Day

(Encyclopedia)Dominion Day: see Canada Day.

Valentine's Day

(Encyclopedia)Valentine's Day: see Saint Valentine's Day. ...

Day of the Dead

(Encyclopedia)Day of the Dead, Span. Día de los Muertos, annual festival in Mexico and other parts of Latin America, commonly on November 1st and 2d. Its ancient Mesoamerican roots now augmented by Christian custo...

Canada Day

(Encyclopedia)Canada Day, formerly Dominion Day, Canadian national holiday, celebrated July 1. It is the anniversary of the uniting in 1867 of Upper and Lower Canada, New Brunswick, and Nova Scotia as the dominion ...