The Spanish National Assembly officially abolished slavery in Puerto Rico.
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The Beatles released their very first album, 'Please Please Me.'
New York became the first US court to allow blood test results to be used as evidence.
The iconic Niagara Falls waterfall ran out of water during a drought.
The New York Horticultural Society was founded.
Karl Wallenda of The Flying Wallendas died after falling off a tightrope between two hotels in San Juan, Puerto Rico.
