A COVID-19 quarantine hotel collapsed in China, leaving 70 people trapped.
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Queen Elizabeth II published her first post on Instagram.
Newsroom on BBC2 switched to color, making it the first color news in the UK.
Dr. John Kellogg served the world's first cornflakes.
US Air Force divers located the Challenger Space Shuttle's crew cabin at the bottom of the ocean.
Activists started a 54 mile (87 km) march from Selma to Montgomery.
