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TIL that many sharks have huge livers, filled with fatty oils that are lighter than water, making them lighter/faster swimmers and adding buoyancy.

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Kn7G TIL Bob Marley’s song, Buffalo Soldier, refers to the name given to black troops by Native Americans, who thought black soldiers’ hair looked and felt like a buffalo’s pelt. Buffalo Soldiers settled railroad disputes, built and repaired forts, and protected settlers from Native American attacks.
v9yj TIL chemists Lea & Perrins created the recipe for a fermented liquid condiment in the 1830s, however it wasn’t to their liking and was set aside and forgotten about. When the barrels were rediscovered many months later, the taste had mellowed into what is now known as Worcestershire sauce.
4XVNo TIL Amish men shave their mustaches as a protest against violence. The Amish were originally founded in Europe. At the time, mustaches were prevalent in the German military. The Amish began shaving their mustaches as a physical representation of their non-violent nature. It continues today.
J1KV TIL that in 1927 a fictional student was enrolled at Georgia Tech. Since then, this student has received all undergraduate degrees, fought in the war, served on Mad magazine’s Board of Directors and was the leading candidate for Time’s person of the year.
nebW9 TIL in the 19th century Britain was the world's richest and most advanced economy. Real GDP per person almost doubled in the 90 years between 1780 and 1870, when it reached $3263 per capita. This was one third greater than GDP per person in the USA, and 70% more than both France and Germany.