In the Spirit of St Louis, Aviator Charles Lindbergh landed in Paris after the first-ever solo air crossing of Atlantic.
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Otto III was crowned Holy Roman Emperor at the young age of 16.
Michelangelo's Pietà in St. Peter's Basilica in Rome was vandalized.
The American Red Cross was founded by Clara Barton, a pioneering American nurse.
NASA's Apollo 10 Spacecraft ran a test flight of the Lunar Lander Module close to the Moon’s surface.
The 9th Street Art Exhibition opened.