This document traces the origins and evolution of rock music from the 1950s through the late 1960s. It mentions early rock and roll artists like Alan Freed, Bill Haley, Joe Turner, and Elvis Presley in the 1950s. In the late 1950s and 1960s, rock split into different styles like rockabilly, blues rock, and beat music from Britain. Major bands that helped shape rock during this era included The Beatles, The Kinks, and The Stooges. The document also references the influential 1969 Woodstock music festival.