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TIL that China has a law that enforces adult children to visit and care for their elderly parents.

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KY8JG TIL that blue-green algae is not scientifically an algae, but instead a gram-negative bacteria. They are capable of oxygenic photosynthesis and have fossil records dating back 3.5 billion years. Furthermore, they are the first organisms known to have produced oxygen during the Great Oxidation Event.
gr0e8 TIL in the men's outdoor pole vault, the top 8 all-time performances are all by Armand Duplantis, and the top 24 performances are shared by Duplantis and Sergey Bubka—seventeen of those by Duplantis and seven by Bubka.
QYYX TIL although film studios and music labels continue to mark their products with “all rights reserved”, this has had no legal effect since 2000.
LkJXP TIL the oldest tree ever discovered was cut down by a scientist and a park ranger in order to retrieve a $50 scientific tool
R5a5l TIL that Genelle Guzman-McMillan was the last survivor to be pulled from the 9/11 wreckage at the Twin Towers. She was trapped for 27 hours.