The American Dental Association was founded in Niagara Falls, New York.
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Christopher Columbus set sail on his first voyage from Palos de la Frontera, Spain.
Tokyo had its hottest day on record, reaching a staggering 102.4°F (39.1°C).
'No Matter What' by Irish boy band Boyzone was released.
American coming-of-age teen comedy film 'The Princess Diaries' was released.
Camila Cabello released her hit single 'Havana.'
