Grease The Musical first opened at the Eden Theatre in Manhattan, New York.
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Whitney Houston's self-titled album was released.
The Saint Valentine's Day Massacre took place in Chicago.
The discovery of Earth's wobbling motion on its axis was presented to the Royal Society, London, in a letter written by astronomer James Bradley.
Alexander Graham Bell applied for a patent for the telephone.
YouTube was founded & the domain name youtube.com was activated.
