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TIL about the whistling language called Sylbo. Native to the Canary Islands, Sylbo is thousands of years old and developed as a means for inhabitants of La Gomera to communicate across deep ravines and narrow valleys.

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BA6k TIL King Henry VIII may have possibly had a rare blood type (Kell positive), which would explain his wives’ and mistresses’ many miscarriages as well as his midlife physical and mental deterioration.
19r4 TIL: The US created a bomb containing hibernating bats with a timed incendiary device. Launched at dawn the bats would inhabit nearby attics up to a 40 mile radius setting fire to enemy territory. They named it the Bat Bomb.
yQaJV TIL that a single cow can produce up to 65 pounds of manure per day
9erX TIL one-third of Americans live paycheck to paycheck.
m1R4o TIL that Eleanor Roosevelt’s maiden name was Roosevelt. She was Teddy Roosevelt’s niece and FDR’s fifth cousin once removed.