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Grey hairs sometimes regain their colour when we feel less stressed.

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XE5dP TIL the first German defeat and the first Japanese defeat of World War 2 both came at the hands of Australian forces.
b9wAp TIL that to renounce your United States citizenship, you have to pay a whopping fee of $2,350.
xva7 TIL China is currently building a fully functional duplicate of Manhattan, with intentions of it becoming the “largest single financial center in the world”.
9w6Nm TIL Mercator maps were never intended as general-purpose world maps. The massive distortion of geographical geometry is a side-effect of the map's special feature: simple marine navigation. A course along any constant compass direction is represented on the map as a straight line.
ANGxg TIL Robert Wadlow weighed an unremarkable 8.7 lb when he was born, however by the age of 5, he was 5'4" & wearing clothes meant for teenagers. He reached the 6' mark as a 8-year-old & was over 6'6" at 11 years old. He'd eventually reach his record height of 8'11.1" before dying at the age of 22.