March 21, 1952 - At the Cleveland Arena, influential DJ Alan Freed holds what is today considered the first true "rock and roll concert," as his Moondog Coronation Ball features Billy Ward and the Dominoes, Tiny Grimes, and Paul Williams and the Hucklebuckers. With ten thousand attendees (and twice that many outside, waiting to get in), the local police shut the concert down prematurely for fire code violations, causing a near-riot.