The New York Horticultural Society was founded.
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The super-bright comet 'Hale-Bopp' reached its closest point to Earth at a distance of 1.215 AU, making it visible to the naked eye.
Four people died, and at least twenty were injured in a terrorist attack near the Houses of Parliament in London.
The Beatles released their very first album, 'Please Please Me.'
Karl Wallenda of The Flying Wallendas died after falling off a tightrope between two hotels in San Juan, Puerto Rico.
America built the first rocket to reach an altitude of 50 miles (80 km).
