The end of one era is the beginning of another. Here’s to New Year’s celebrations that take us back to a mod future.

Photos clockwise from top left: Bernard Hoffman, LIFE (1941); Nina Leen, LIFE (1945); still from the film, “The 10th Victim” (1965); Ezra Stoller (1957); from an ad for Ideal Toy’s Robert the Robot (circa 1954); Deborah Turbeville, Vogue (1967); William Claxton (1965); still from the film, “2001: A Space Odyssey” (1968); Peter Knapp, Sunday Times Magazine (1964); Bert Stern (1969).