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TIL The Japanese spider crab has the largest leg span of any arthropod in the world, reaching up to 12 ft long. The actual body of the crab is only 15 inches long. Weighing up to 41 pounds, it has 8 legs and 2 arms used for feeding, each feeding arm is up to 5 ft long.

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gMXZ8 TIL of the letter written by a slave named Jourdon Anderson who was freed from slavery after the Civil War, in response to his former master Patrick Henry Anderson's request for him to return to his old plantation and save his ailing business.
loWk7 TIL Bernard Fisher established definitively that early-stage breast cancer is more effectively treated by lumpectomy, in combination with radiation therapy, chemotherapy, and/or hormonal therapy, than by radical mastectomy which had been standard for over 75 years.
wL0oE TIL People with lazy eye (amblyopia) are not lazy but they can’t control the way their eyes work. Common in children, it develops when there’s a breakdown in how the brain and the eye work together, and the brain can’t recognize the sight from 1 eye
W7ggN TIL Saint Catherine was tortured on a wheel by the Emperor Maxentius for refusing to renounce her Christian faith. The wheel broke and Catherine was eventually beheaded instead. Her martyrdom is remembered in the firework called the 'Catherine Wheel'.
oB8xY TIL that in 1979, George Lucas created the Lucasfilm Computer Department with two branches. The Games Group became LucasArts. The Graphics Group became Pixar