1793 Eli Whitney applied for a patent for his cotton gin, which was granted the following March.
1868, Thomas Edison of Boston, Mass., first patent application was received and recorded by the Patent Office. It was for an “Electrographic Vote Recorder"
1965, the Gateway Arch (630' (190m) high) was completed in St. Louis, Missouri.
1955 Bill Gates Microsoft
Science, Engineering and Management Knowledge History of the Day - Index for the Year
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