site.btaObservances: April 12-13
Bulgaria's first cosmonaut Georgi Ivanov launched into space aboard the Soyuz 33 on April 10, 1979 (BTA Photo)
April 12 The world: - International Day of Aviation and Cosmonautics; - International Day for Street Children. On this date in Bulgarian history: 1911: Union of People's Community Centres is established.
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