Valentinian I, also known as Valentinian the Great, ascended to the throne as the Roman emperor.
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Michael Jackson's 'Thriller' hit number one on the Billboard 200 and stayed there for 37 weeks.
Wyoming's Grand Teton National Park was established after being signed off by President Calvin Coolidge.
Nineteen tourists were killed in a hot air balloon crash in Luxor, Egypt.
The New York Philharmonic Orchestra performed in Pyongyang, North Korea.
Robert Watson-Watt demonstrated radar in Slough, England, UK.
