GMT: TGIF Blueberry Pie Day edition now NSFW

Mornin'

1944 – World War II: Nine German E-boats attacked US and UK units during Exercise Tiger, the rehearsal for the Normandy landings, killing 946.
1945 – Benito Mussolini and his mistress Clara Petacci are executed by a firing squad consisting of members of the Italian resistance movement.
1947 – Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to prove that Peruvian natives could have settled Polynesia.
1948 – Igor Stravinsky conducted the premier of his American ballet, Orpheus, in New York City at New York City Center.
1949 – The Hukbalahap are accused of assassinating former First Lady of the Philippines Aurora Quezon, while she is en route to dedicate a hospital in memory of her late husband; her daughter and ten others are also killed.
1952 – Dwight D. Eisenhower resigns as Supreme Allied Commander of NATO.
1952 – Occupied Japan by the Supreme Commander for the Allied Powers: The United States occupation of Japan ends as the Treaty of San Francisco, ratified September 8, 1951, comes into force.
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 fight communist sanctuaries in Cambodia.
1975 – General Cao Van 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.
1977 – The Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure is signed.
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.
1988 – Near Maui, Hawaii, flight attendant Clarabelle "C.B." Lansing is blown out of Aloha Airlines Flight 243, a Boeing 737, and falls to her death when part of the plane's fuselage rips open in mid-flight.
1994 – Former Central Intelligence Agency counterintelligence officer and analyst Aldrich Ames pleads guilty to giving U.S. secrets to the Soviet Union and later Russia.
1996 – Whitewater controversy: President Bill Clinton gives a 4½ hour videotaped testimony for the defense.
1996 – Port Arthur massacre, Tasmania: A gunman, Martin Bryant, opens fire at the Broad Arrow Cafe in Port Arthur, Tasmania, killing 35 people and wounding 23 others.

Things recognized on April 28 2017

National Blueberry Pie Day
National BraveHearts Day
National Great Poetry Reading Day
Workers’ Memorial Day
National Superhero Day
National Arbor Day – Last Friday in April
National Hairball Awareness Day – Last Friday in April
National Teach Children to Save Day – Changes Annually