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TIL that when your turn signal starts blinking twice as fast it means one of your bulbs is out.

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KYBE4 TIL that the Tibetan is one of the hardest languages to spell, as its last spelling reform dates back to 800 AD. While the spoken language has evolved, the written form remains unchanged, reflecting 9th-century pronunciation. This divergence has resulted in numerous silent letters.
R7x16 TIL researchers did an experiment in 1999 on rats to see how long they could live without sleep. They mostly lasted 2 weeks of this torture before succumbing.
Z8VWG TIL places like Wales, Wallachia, Wallonia, and Cornwall etc, have similar names because it was the word German conquerors called the surviving Roman speakers after the empire fell. The twem "walhaz" means stranger, which the surviving Roman refugees were to them.
5VevQ TIL Procrastination is not a result of laziness or poor time management. Scientific studies suggest procrastination is due to poor mood management.
gr7bW TIL about the Nivelle Offensive a Franco-British operation on the Western Front in the First World War which was named after General Robert Nivelle, the commander-in-chief of the French metropolitan armies, who led the offensive. The failure of the offensive caused the French army to mutiny.