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The first surgery under anesthesia was performed in this operating theater, now known as the Ether Dome, at Mass General Hospital in Boston on October 16, 1846. Photo/Wikimedia Commons
History

First public demonstration of surgery under anesthesia happened at Boston’s Mass...

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Loring Coes invented the monkey wrench, a hand tool whose popularity has endured for nearly 200 years, in Worcester during the middle of the 19th century. Photo/Wikimedia Commons
History

The monkey wrench was invented in Worcester

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