MacTutor
5th August
On this day in 1900, the engineer Frank Baldwin was awarded a U.S. Patent for his mechanical calculator. This machine was capable of doing a calculation such as in about 20 seconds with eight turns of the handle.
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The postage stamp of one of today's mathematicians at THIS LINK was issued in 1929.
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The postage stamp of one of today's mathematicians at THIS LINK was issued in 1929.