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206

TIL: That 4/20 is also National Pineapple Upside-down Cake Day.

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via reddit.com

Z8Mva TIL that humans are the only primates with distinct white eyeballs, they probably evolved to make it easier for humans to follow another's gaze and thus read intentions, interest and improve social cooperation
dmJd TIL that Harry Truman, due to his very poor eyesight, secretly memorized the eye charts in order to enlist in the Missouri Army National Guard
N7dlJ TIL Some McDonald’s salads have more calories than the burgers
LQwem TIL that fetuses experience around 85 decibels of background noise (as noisy as a busy street) from the mother's body in the womb
NZwM TIL Isaac Newton prowled the bars and taverns in seedy parts of London in disguise to gather evidence of counterfeiting. His work led to 28 convictions, one being hanged for high treason