Supreme Court ruling barring racial segregation in public schools sparks racial violence that continues until 1976.Four students protesting the U.S. invasion of Cambodia are killed by the National Guard at Kent State University in Ohio (May 4).
Two students killed and nine others wounded at Jackson State University, an all-black school in Mississippi, when police fired into a dormitory during a student protest (May 14); unlike Kent State, this incident evoked little national media attention.
President Nixon proposes Huston Plan.
Occupational Safety and Health Administration (OSHA) created.
Student protests force some four hundred colleges and universities to close following Kent State killings.
Cooper-Church amendment limits U.S. role in Cambodia.
A total of 334,600 U.S. military personnel in Vietnam.
President Nixon orders the invasion of Cambodia.
Senate repeals Gulf of Tonkin Resolution.The Environmental Protection Agency is established to consolidate all major governmental programs combatting pollution.
Mexican American third party, La Raza Unida
(United Race) founded in Texas.
According to a study done by Princeton University, 20 percent of all married Chicana and black women have been permanently sterilized.
The first no-fault divorce law in the Western world is passed in California.
Congress approves extending the Voting Rights Act of 1965 until 1975.