June 23-July 5, 1975: Arthur Ashe defeats Jimmy Connors (6-1 6-1 5-7 6-4) and Billie Jean King defeats Evonne Goolagong Cawley (6-0 6-1) to win Wimbledon.

September 5, 1975: President Ford escapes assassination attempt in Sacramento, Calif.

September 22, 1975: President Ford escapes second assassination attempt in 17 days.

1975: In Boston: Boston Landmarks Commission and ArtsBoston are established.

March 24, 1976: Supreme Court rules that blacks and other minorities are entitled to retroactive job seniority.

July 3, 1976: Supreme Court rules that death penalty is not inherently cruel or unusual and is a constitutionally acceptable form of punishment.

July 4, 1976: The United States celebrates bicentennial.

July 4, 1976: Israeli airborne commandos attack Uganda’s Entebbe Airport and free 103 hostages held by pro-Palestinian hijackers of Air France plane; one Israeli and several Ugandan soldiers killed in raid.

1976: In Boston: John Hancock Tower built; First Night begins; Boston Irish News begins publication; WGBH Ten O’Clock News begins broadcasting; Faneuil Hall marketplace developed.

August 19, 1976: U.S. President Gerald Ford edges out challenger Ronald Reagan to win the Republican Party presidential nomination in Kansas City.

November 2, 1976: Jimmy Carter elected 39th U.S. president.

January 1, 1977: First woman Episcopal priest ordained.

January 21, 1977: Carter pardons Vietnam War draft evaders.

January 23, 1977: Following the publishing of Alex Haley’s “Roots” in 1976, it begins its phenomenally successful run on ABC, eventually drawing an audience of 130 million.

September 12, 1977: South African activist Stephen Biko dies in police custody.

September 21, 1977: Nuclear non-proliferation pact, curbing spread of nuclear weapons, signed by 15 countries, including U.S. and USSR.

Jan. 20-21; Feb. 6-7, 1978: In Boston: Blizzards cripple the city of Boston and the state.

February 15, 1978: Rhodesia’s prime minister Ian D. Smith and three black leaders agree on transfer to black majority rule.

June 28, 1978: Supreme Court, in Bakke case, bars quota systems in college admissions but affirms constitutionality of programs giving advantage to minorities.

September 17, 1978: “Framework for Peace” in Middle East signed by Egypt’s president Anwar Sadat and Israeli premier Menachem Begin after 13-day conference at Camp David led by President Carter.

January 7, 1979: Vietnam and Vietnambacked Cambodian insurgents announce fall of Phnom Penh, Cambodian capital, and collapse of Pol Pot regime.