The first documented blood transfusion took place using sheep blood in a teenage boy.
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Researchers at the Lawrence Berkeley National Laboratory discover Californium, a new radioactive element.
The first polar bear in America was exhibited in Boston.
Ether was used as an anesthetic for the first time, by American surgeon Crawford Long, in Athens, Georgia.
A Texan doctor performed the world's first successful partial skull and scalp transplant.
A Duke University neuroscientist connected two rat brains together over the internet.
