In Svalbard, Norway, the Global Seed Vault celebrated its 10th anniversary by adding its one-millionth seed.
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Valentinian I, also known as Valentinian the Great, ascended to the throne as the Roman emperor.
£1 notes were circulated in Britain.
Wyoming's Grand Teton National Park was established after being signed off by President Calvin Coolidge.
The New York Philharmonic Orchestra performed in Pyongyang, North Korea.
Nineteen tourists were killed in a hot air balloon crash in Luxor, Egypt.
