Nineteen European nations forbade human cloning; however, the UK and Germany refused to sign the agreement.
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The first-ever cloned horse was born in a natural delivery.
The discovery of the chemical element Neptunium was announced.
Ether was used as an anesthetic for the first time, by American surgeon Crawford Long, in Athens, Georgia.
Francis Crick & James Watson's discovery of the double-helix structure of DNA was formally announced.
Researchers at the Lawrence Berkeley National Laboratory discover Californium, a new radioactive element.
