The protesters, organized by a group called the Anti-Capitalist Convergence, marched and rode bicycles to a park several blocks from the White House.

October 21, 1967, she was among the 35,000 anti-war protesters organized by the National Mobilization Committee to End the War in Vietnam, gathered for a demonstration at the Defense Department, called the "March on The Pentagon".

During his junior year, protesters organized by the Students for a Democratic Society held a recruiter for Dow, the maker of napalm, in a classroom for five hours.

When he arrives for the luncheon speech at the World Trade Center, Mr. O'Neill will be met by protesters organized by the A.F.L.-C.I.O. and a coalition of liberal groups.

A spokesman from the archdiocese addressed the parishioners before the mass and referred to the protesters as an "articulate, professionally organized minority" and as "militant revolutionaries".

The protesters, organized by the Los Angeles Coalition to End Homelessness, had not stinted on their warnings about a rise in crime that could be expected if the county cut its aid to the poor.

In the Philippines in 2001, a group of protesters organized via text messaging gathered at the EDSA Shrine, the site of the 1986 revolution that overthrew Ferdinand Marcos, to protest the corruption of President Joseph Estrada.

The protesters, organized by Operation Rescue, went limp as police officers dressed in helmets and protective face shields carried them away.

Outside of the Bush commission's meeting last week in a Washington hotel ballroom, protesters organized by the A.F.L.-C.I.O. chanted "Hey, hey, ho, ho, Bush and Wall Street have got to go."

Mr. Giuliani's news conference, called to highlight his endorsement by the executive board of the Port Authority Police Benevolent Association, was nearly drowned out by about 50 protesters organized by the Coalition for the Homeless.