Hooligans (Jan. 2): A soccer match in Glasgow, Scotland, ends in tragedy when a stadium barrier collapses and 66 people are trampled to death. It is one of the worst tragedies in sports history.

	Charles Manson

Murderous 'Family' (March 29): Charles Manson and three female members of his "family" are sentenced to death for the murders of actress Sharon Tate and six others in 1969.

My Lai Verdict (March 29): Army 1st Lt. William Calley is found guilty in a military court of the murders of 22 Vietnamese civilians in the hamlet of My Lai. He is the only soldier convicted in the massacre, although a number of officers and enlisted personnel are tried.

Forced Busing (April 20): The Supreme Court unanimously rules that every school district in the South must bus students to achieve integration.

Riding the Rails (May 1): The National Railroad Passenger Corp., the railroad public/private venture known as Amtrak, begins operation.

Nixing Sexism (May 12): The Civil Service Commission bans men-only and women-only designations for most federal jobs.

China Trade (June 9): President Nixon ends a 21-year embargo against trade with Communist China.

Pentagon Papers (June 13): A New York Times article explodes into one of the biggest stories of the year. Fed a top-secret analysis of the war in Vietnam, The Times and then The Washington Post are taken to court by the Nixon administration, which seeks to quash the series on national-security grounds. The Supreme Court rules 6-3 that the newspapers have a right to print the material. The series reveals that in many instances, the public and Congress have been misled about Vietnam.

Prison Riot (Sept. 9): A riot involving more than 1,200 inmates breaks out at the Attica Correctional Facility in New York. Using hostages as their bargaining tool, the inmates present a list of ultimatums. On Sept. 13, Gov. Nelson Rockefeller orders 1,500 lawmen to storm the cellblocks. The riot claims the lives of 11 hostages and 32 prisoners.

More Mickey (Oct. 1): Disney World opens in Orlando, Fla., at a cost of $500 million to $600 million.