The passage of California Proposition 8 sparked statewide protests in November, with tens of thousands of gay activists marching in Los Angeles, San Francisco and dozens of other communities.

The measure, which passed on Nov. 4 with 52 percent of the vote, changes the state constitution to take away the right of gays and lesbians to marry.

In San Francisco, an estimated 5,000 demonstrators marched from Civic Center to the Castro and Dolores Park. Police officers stopped traffic and escorted the crowd down Market Street.