Yuri Gagarin launched into space aboard Vostok-1 on April 12, 1961.
Sources
- How Yuri Gagarin Was Picked to Be First in Space (smithsonianmag.com)
- https://www.planetary.org/space-missions/vostok-1 (planetary.org)
- https://www.nasa.gov/image-article/april-1961-first-human-entered-space/ (nasa.gov)
- https://www.thisdayinaviation.com/12-april-1961/ (thisdayinaviation.com)
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