About National Space Day
In 1997, the Lockheed Martin Corporation introduced National Space Day as a one-off event, and it was later expanded to International Space Day in 2001, by former astronaut and senator John Glenn.
Similar Observances
National Yellow Pig Day
Yellow Pig Day originated in the 1960s when two math students from Princeton spent a long time analysing the number 17.
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National Fossil Day
A celebration organized by the National Park Service to promote public awareness and stewardship of fossils.
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