At a broad range of events on Sunday, participants analyzed, remembered or discussed the four days of rioting that convulsed Los Angeles 20 years ago, after four Los Angeles police officers were acquitted of charges they had beaten a black man during a traffic stop.

The Rev. Al Sharpton, a community organizer from New York who now hosts a daily politics show on MSNBC, spoke during services at First AME Church.

Photographer Gary Leonard hosted a reception at his gallery for an exhibition of photos and videos taken by him and his son David on April 29, 1992 — the day the riots broke out. The month-long exhibition is titled “Parker Center.” The studio is at Take My Picture, 860 S. Broadway.

A social justice organization based in South Los Angeles called Community Coalition drew attention to vacant lots on Vermont and Manchester avenues. Mayor Antonio Villaraigosa was expected to attend the event called “South L.A. Rises: Community Fair and Rally'' at 81st Street and Vermont Avenue.

The Anti-Defamation League released a joint statement of unity, signed by a coalition of organizations taking a stand against hatred, including the ACLU, Police Commission, NAACP, Asian Pacific American Legal Center, CHIRLA and the Los Angeles Gay and Lesbian Center. That event was at the Robert F. Kennedy School in Koreatown.

A group called Korean Churches for Community Development held a commemorative event with presenters including Van Jones, Edward James Olmos and other leaders at the Glory Church of Jesus Christ.

At the epicenter of the riot — Florence and Normandie avenues — a group called the Coalition for Community Control Over Police held a speak-out. One hour later, a “Solidarity Press Conference'' was held there by the 77th Street Area Community Police Advisory Board, the 77th Street Area Clergy Council, Cease Fire, Detours Mentoring Group, Project Accountability, Seeking Peaceful Solutions, and Unity 2.

And in Long Beach, where riots also raged, the Long Beach Immigrant Rights Coalition presented an interfaith service and message of hope during a service at First Congregational Church of Long Beach.