United States Department of the Treasury
The United States Treasury Department reintroduces the two-dollar bill as a Federal Reserve Note on Thomas Jefferson's 233rd birthday as part of the United States Bicentennial celebration.
13 Nisan — Tarihte Bugün
Geçmişte bugün yaşanan olaylar, doğumlar, ölümler ve tatiller. Türkçe ve İngilizce Vikipedi kaynaklı kapsamlı arşiv.
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13 Nisan 2026 · İngilizce Vikipedi · 45 kayıt · Sayfa 2 / 5
Lapua Cartridge Factory explosion
Forty workers die in the Lapua Cartridge Factory explosion, the deadliest industrial accident in modern Finnish history.
1975 Beirut bus massacre
Beirut bus massacre: A confrontation between Phalangist paramilitaries and PLO militia marks the start of the 15-year Lebanese Civil War.
Universal Postal Union
The Universal Postal Union decides to recognize the People's Republic of China as the only legitimate Chinese representative, effectively expelling the Republic of China administering Taiwan.
Vietnam War
Vietnam War: The Battle of An Lộc begins.
Oxygen
At 10:08 PM EST an oxygen tank aboard the Apollo 13 Service Module explodes, putting the crew in great danger and causing major damage to the Apollo command and service module (codenamed "Odyssey") while en route to the Moon.
36th Academy Awards
At the Academy Awards, Sidney Poitier becomes the first African-American man to win the Best Actor award for the 1963 film Lilies of the Field.
Transit (satellite navigation system)
The United States launches Transit 1-B, the world's first satellite navigation system.
Central Intelligence Agency
CIA director Allen Dulles launches the mind-control program Project MKUltra.
Hadassah Medical Center
In an ambush, 78 Jewish doctors, nurses and medical students from Hadassah Hospital, and a British soldier, are massacred by Arabs in Sheikh Jarrah. This event came to be known as the Hadassah medical convoy massacre.