Donald Trump was permanently suspended from Twitter due to the risk of further incitement of violence.
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The unmanned space mission Luna 21 was launched.
Justin Bieber posted on Instagram that he has Lyme disease, a bacterial illness spread by ticks.
Giant self-rolling snowballs were found in the UK.
Mathematician Sophie Germain became the first woman to be awarded the prestigious Paris Academy of Sizes Prize for her theory of surface vibrations.
The state of Mississippi became the first to accept the prohibition of alcohol.
