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TIL some cultures lack masturbation. The Aka and Ngandu people of the Congo Basin have no word for masturbation and are confused by the concept.

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oVGo TIL of the ‘Japanese Smoking Paradox’ where Japanese smokers smoke more than US/European males but have much lower lung cancer rates and nobody is entirely sure why.
D1LOe TIL that there are two separate genes that determine eye colour, and which are dependent on each other. Depending on how these genes combine, it is possible for two blue eyed parents to have a brown eyed child.
7xn7 TIL all German students are required to visit old concentration camps as part of their education.
6wkl TIL there is a Microsoft Office championsip that has been held annualy since 2001
GYB05 TIL that One World Trade Center had a flood that trapped people inside elevators. An expert claims that this shouldn't have happened and may indicate a design flaw in the tower.