The doctrine of the Holy Trinity was established after the end of the Council of Nicaea.
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Astronomer Galileo demonstrated one of his earlier telescopes to Venetian lawmakers.
The first daily passenger air service began, going from London to Paris.
Businessman Momofuku Ando marketed the first-ever pre-cooked instant noodles.
A Japanese scientist, Shibasaburo Kitasato, isolated the bacterium of the Bubonic Plague.
Alicia Thornton became the first British female jockey after taking part in a horse race at York Racecourse in Knavesmire, England.
