FILE - In this April 13, 1967 file photo, people gather in the Haight-Ashbury district in San Francisco. In 2017's Haight-Ashbury neighborhood, which had been ground zero for the counterculture, two-bedroom apartments now rent for $5,000 a month. San Francisco remains a magnet for young people, but even those earning six-figure Silicon Valley salaries complain about the cost of living. (AP Photo/Robert W. Klein, File)
SAN FRANCISCO — Fifty years ago, thousands of young Americans descended on San Francisco to join a cultural revolution known as the Summer of Love.
It marked a fusion of art and political protest and introduced the world to local musicians that would stake a place in rock-and-roll history, like the Grateful Dead, Janis Joplin and Jefferson Airplane.
San Francisco is celebrating the anniversary with exhibits, festivals and performances that explore the city’s counterculture past and pay tribute to a pivotal moment in American history.