to avoid damage to the Holy City. Two members of the American rock group Moby Grape are arrested for contributing to the delinquency of minors. June 8 USS Liberty incident: A U.S. Navy ship is attacked by Israeli forces, apparently in error, killing 34 crew. Egypt severed diplomatic relations with the United States June 10 Six-Day War ends: Israel and Syria agree to a United Nations-mediated cease-fire. The Soviet Union severs diplomatic relations with Israel. Margrethe, heir apparent to the throne of Denmark, marries French count Henri de Laborde de Monpezat. June 11 – A race riot occurs in Tampa, Florida after the shooting death of Martin Chambers by police while he was allegedly robbing a camera store. The unrest lasts several days. June 12 Loving v. Virginia: The United States Supreme Court declares all U.S. state laws prohibiting interracial marriage to be unconstitutional. Venera program: Venera 4 is launched by the Soviet Union (the first space probe to enter another planet's atmosphere and successfully return data). June 13 – Solicitor General Thurgood Marshall is nominated as the first African American justice of the United States Supreme Court. June 14 – Mariner program: Mariner 5 is launched toward Venus. June 14 – 15 – Glenn Gould records Prokofiev's Seventh Piano Sonata, Op. 83, in New York City (his only recording of a Prokofiev composition). June 16 – The Monterey Pop Festival begins and is held for 3 days. June 17 – The People's Republic of China tests its first hydrogen bomb. June 18 – Eighteen British soldiers are killed in the Aden police mutiny. June 23 – Cold War: U.S. President Lyndon B. Johnson meets with Soviet Premier Alexei Kosygin in Glassboro, New Jersey, for the 3-day Glassboro Summit Conference. Johnson travels to Los Angeles for a dinner at the Century Plaza Hotel where earlier in the day thousands of war protesters clashed with L.A. police. June 25 – 400 million viewers watch Our World, the first live, international, satellite television production. It features the live debut of The Beatles' song "All You Need Is Love". June 26 Pope Paul VI ordains 27 new cardinals (one of whom is the future Pope John Paul II). The Buffalo Race Riot begins, lasting until July 1; leads to 200 arrests. June 27 – The first automatic cash machine (voucher-based) is installed, in the office of Barclays Bank in Enfield, England. June 28