A pristine poster from the Grateful Dead’s first concert is up for auction ... hosted his first public drug-fueled Acid Test on Dec. 4, 1965. The occasion marked the Bay Area jam band’s ...

It’s the Grateful Dead’s 60th anniversary, and a piece of genuine psychedelic history just surfaced from that era of counterculture fog in San Francisco.

Previously known as "The Warlocks," the Grateful Dead played its first show under the new name in 1965. (Credit: Heritage) When the Grateful Dead played its first live show Dec. 4, 1965 ...