The First Zoological Society in the US was formed in Philadelphia.
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The Philadelphia Zoo opened. At the time, it was the only zoo in the 'New World.'
The first killer whale calf was born in captivity at Marineland in Los Angeles, California.
The first documented blood transfusion took place using sheep blood in a teenage boy.
Julius Wolff supplied the first canned sardines from Maine, USA.
Sputnik 2 soviet spacecraft burned up, returning through Earth's atmosphere.
