Secretary’s Day First Celebrated, April 21, 1952
Secretary's Day (now Administrative Professionals' Day) is first celebrated. Date: April 21, 1952 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1952 📅 On This Day (Today)
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United Air Lines Flight 736 Collision Near Arden, Nevada, April 21, 1958
United Air Lines Flight 736 collides with a United States Air Force fighter jet near Arden, Nevada in what is now Enterprise, Nevada. Date: April 21, 1958 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1958 📅 On This Day (Today)
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Brasília Officially Inaugurated as Brazil’s Capital, April 21, 1960
Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro. Date: April 21, 1960 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1960 📅 On This Day (Today)
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Seattle World’s Fair Century 21 Exposition Opens After World War II – April 21, 1962
The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II. Date: April 21, 1962 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1962 📅 On This Day (Today)
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First Universal House of Justice Election Establishes Baháʼí Supreme Institution April 21, 1963
The first election of the Universal House of Justice is held, marking its establishment as the supreme governing institution of the Baháʼí Faith. Date: April 21, 1963 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1963 📅 On This Day (Today)
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Transit-5bn Satellite Fails, Plutonium Dispersed in Reentry, April 21, 1964
A Transit-5bn satellite fails to reach orbit after launch; as it re-enters the atmosphere, 2.1 pounds (0.95 kg) of radioactive plutonium in its SNAP RTG power source is widely dispersed. Date: April 21, 1964 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1964 📅 On This Day…
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New York World’s Fair Second Season Opens, April 21, 1965
The 1964–1965 New York World's Fair opens for its second and final season. Date: April 21, 1965 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1965 📅 On This Day (Today)
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Haile Selassie Visits Jamaica, Grounation Day, April 21, 1966
Rastafari movement: Haile Selassie of Ethiopia visits Jamaica, an event now celebrated as Grounation Day. Date: April 21, 1966 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1966 📅 On This Day (Today)
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Illinois Tornado Outbreak Kills 50+ and Injures 1,000+ – April 21, 1967
A tornado outbreak in Illinois, United States, kills over 50 and injures over 1,000. Belvidere sustains over 500 casualties as a violent tornado strikes the high school. Another tornado near Chicago causes another 500 casualties, devastating Oak Lawn. Date: April 21, 1967 Read more on Wikipedia → 📅 Other events on April 21 📅 Events…
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Greek Military Coup Led by Papadopoulos Begins Dictatorship April 21, 1967
A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years. Date: April 21, 1967 Read more on Wikipedia → 📅 Other events on April 21 📅 Events on this day in 1967 📅 On This Day (Today)
