Henry Hudson began a journey up the river that would later be named after him – the Hudson River.
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The Greeks defeated the Persians in the Battle of Marathon.
American actress Katherine Hepburn had her first stage performance in New York City, where she played in 'Night Hostess.'
17,000-year-old cave art was discovered in France.
A new federal constitution was created, which marked Switzerland as a federal state.
Nintendo released Pokémon Yellow Version: Special Pikachu Edition in Japan for the Game Boy Color.