Human Be-in, January 14, 1967 (after Eric Thiermann), 2016, Ink and watercolor on Dura-Lar, poster 68” x 48”

The Human Be-in at the Polo Fields in Golden Gate Park is widely regarded as the prelude to the Summer of Love. Billed as a “Gathering of the Tribes,” the free event brought together as many as 30,000 people from diverse communities, including musicians, poets, activists, artists, intellectuals, counterculture luminaries and the “outlaw” motorcycle gangs.

Courtesy Special Collections, University Library, University of California Santa Cruz [Eric Thiermann photographs of UCSC]; Bancroft Library, University of California, Berkeley [Michelle Vignes photograph archive]