Geçmişte bugün yaşanan olaylar, doğumlar, ölümler ve tatiller. Türkçe ve İngilizce Vikipedi kaynaklı kapsamlı arşiv.
21 Nisan 2026 · İngilizce Vikipedi · 337 kayıt · Sayfa 11 / 34
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.
The first election of the Universal House of Justice is held, marking its establishment as the supreme governing institution of the Baháʼí Faith.
Ken Caminiti, American baseball player (died 2004)
John Cameron Mitchell, American actor and director
The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II.
The Century 21 Exposition, the first world's fair in the United States since World War II, opened in Seattle.
David Servan-Schreiber, French physician, neuroscientist, and author (died 2011)
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.
Brasília, a planned city primarily designed by architect and urban planner Lúcio Costa, was officially inaugurated, replacing Rio de Janeiro as the capital of Brazil.
Tim Jacobus, American illustrator and painter
