1980, named for teacher Ernö Rubik (born 1944) who patented it in Hungary in 1975.
1967 in reference to a simple style of clothing popularized in the West and based on dress in Communist China, from French, from name of Mao Tse-tung (1893-1976), Chinese communist leader.
fem. proper name, a familiar form of Sarah. Sadie Hawkins Day (1939) is from name of a character in U.S. newspaper cartoon strip "Li'l Abner," by Al Capp (1909-1979); in reference to a day in early November on which women take the lead in romantic matters.