CHICAGO (CBS) -- The School of the Art Institute of Chicago held a "Happening Auction Party" Friday night to celebrate its online art auction with festivity and whimsy. The event was held in the ...

At the end of the 1950s, pioneering US artist Allan Kaprow invented "happenings" - site-specific art events that paved the way for installation and performance art. In 1961, he staged YARD, using ...