A medical paper on smallpox was published in Boston, making it the first medical publication in American history.
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American tennis player John McEnroe became the first player to be expelled from the Australian Open.
The iconic DeLorean sports car began production in Northern Ireland.
A meteorite that hit Australia 2.2 billion years ago was announced as Earth's oldest recognized meteorite impact structure.
American pop singer Ariana Grande joined YouTube at 13 years old.
New York City passed a law prohibiting women from smoking in public places.
