The first wagon train arrived in California after having left Independence, Missouri, in May 1841.
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The Paris Climate Change Agreement went into force.
Canadian country singer Shania Twain released her third album, 'Come On Over.'
Physicists in New Zealand observed a record-breaking solar flair.
A plane crash in South Sudan at Juba International Airport killed 31 people.
462 non-violent inmates were released from Oklahoma prisons in the largest commutation in American history.
