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TIL the founder of Mother's Day later fought to have it abolished, because it had become too commercialized. She said it was meant "to be a day of sentiment, not profit."

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woNJE TIL about Quantum Chess, where pieces exist in superposition, move unpredictably, and become entangled! It combines chess with quantum mechanics, making strategy more about probabilities. Even Paul Rudd played it vs. Stephen Hawking!
BpgW TIL that the reason rubbing alcohol burns when applied to cuts is because exposed VR1 nerve cells in the cut, which normally detect burning hot temperatures, have their pain threshold lowered by alcohol–so much that your own body temperature causes the burning sensation.
xVLYg TIL the meaning of the word "Demon" acquired its negative connotations from the Hebrew Bible and consequently the New Testament. Originally from the Greek word δαίμων (daimōn), it denotes a benevolent spirit or divine power.
d8VxB TIL the British are often referred to as “Limey” because of their army’s use of lime to prevent scurvy when at sea. The use of citrus was initially a closely guarded military secret as it gave them the ability to remain at sea for lengthy periods without contracting the disorder.
oR1DA TIL people with blue eyes indicate a lack of melanin. Eye color is directly related to the amount of melanin in the front layers of the iris. People with brown eyes have a large amount of melanin in the iris. It's believed blue eyes are can be traced to one human being. Darker eyes help reflect sun.