What Year Is It (56)?
Clues: The U.S. and U.K. lower voter age to 18; Simon & Garfunkel’s “Bridge Over Troubled Water” is #1 song of the year; Uma Thurman is born; Jimi Hendrix & Janis Joplin die; the first Earth Day is celebrated; a cyclone in Bangladesh kills 500,000; U.S. invades Cambodia; and the first New York marathon is run.