Claes Oldenburg was born January 28, 1929, in Stockholm, Sweden, but spent most of his childhood in the United States. After studies at Yale University and the Art Institute of Chicago, he moved to New York City in 1956, where he established himself in the early 1960s with a series of installations and performances influenced by his surroundings on the Lower East Side. Oldenburg's initial interest in constructing environments such as The Street (1960), The Store (1961), and Bedroom Ensemble (1963) soon evolved into a concentration on single sculptures. Using ordinary, everyday objects as his form of expression, he went on to develop "soft" sculpture and fantastic proposals for civic monuments. In 1969, Oldenburg took up fabrication on a large scale with Lipstick (Ascending) on Caterpillar Tracks, which became a controversial focus for student protest when it was installed on the Yale campus, followed in 1976 by Clothespin for downtown Philadelphia. Since 1976 he has worked in partnership with Coosje van Bruggen. Together they have executed over forty Large-Scale Projects, which have been inserted into various urban surroundings in Europe, Asia, and the United States. Their most recent work is the 144-foot-long, 64-foot-high Cupid's Span for Rincon Park on the Embarcadero in San Francisco.