Today in History – April 28

1952 – The Treaty of San Francisco comes into effect, restoring Japanese sovereignty and ending its state of war with most of the Allies of World War II.
1952 – The Sino-Japanese Peace Treaty (Treaty of Taipei) is signed in Taipei, Taiwan between Japan and the Republic of China to officially end the Second Sino-Japanese War.
1965 – United States occupation of the Dominican Republic: American troops land in the Dominican Republic to “forestall establishment of a Communist dictatorship” and to evacuate U.S. Army troops.
1967 – Vietnam War: Boxer Muhammad Ali refuses his induction into the United States Army and is subsequently stripped of his championship and license.
1969 – Charles de Gaulle resigns as President of France.
1970 – Vietnam War: U.S. President Richard Nixon formally authorizes American combat troops to take part in the Cambodian campaign.
1973 – The Dark Side of the Moon by Pink Floyd, recorded in Abbey Road Studios goes to number one on the US Billboard chart, beginning a record-breaking 741-week chart run.
1975 – General Cao Văn Viên, chief of the South Vietnamese military, departs for the US as the North Vietnamese Army closed in on victory.
1977 – The Red Army Faction trial ends, with Andreas Baader, Gudrun Ensslin and Jan-Carl Raspe found guilty of four counts of murder and more than 30 counts of attempted murder.
1978 – President of Afghanistan, Mohammed Daoud Khan, is overthrown and assassinated in a coup led by pro-communist rebels.
1986 – The United States Navy aircraft carrier USS Enterprise becomes the first nuclear-powered aircraft carrier to transit the Suez Canal, navigating from the Red Sea to the Mediterranean Sea to relieve the USS Coral Sea.
1986 – High levels of radiation resulting from the Chernobyl disaster are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.