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TIL the Mayans customized their teeth. They would carve holes into their teeth and fill the spaces with different stone inlays. They used minerals like jadeite, hematite, pyrite and turquoise. The stones also had specific meanings as jade may have symbolized pure breath or elegant speech.

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5YBO9 TIL of Miryang case, where a girl was assaulted by 41 high school boys, filmed, have to identify the suspects face-to-face but the perpetrators receive little to none punishment, some due to "have bright future"
Mepw8 TIL that in 2010, Korea temporarily removed tariffs on napa cabbage and radish imports because heavy rains and subsequent loss of crops, and therefore lack of kimchi, was considered a national crisis
bpR9 TIL the way you pay for something affects how you perceive the transaction. Using cash “hurts” more because the loss of money is perceived to be more immediate, while using a credit/debit card decouples the purchase from the loss of money.
Y6Vd TIL of a stinging tree called the Gympie Gympie. It secretes a toxin that is so painful that is has driven humans and animals to suicide. It feels like being burnt with hot acid and electrocuted simultaneously. A man shot himself after using a leaf from the tree as toilet paper.
v1aoB TIL In the 1940s the Superman Radio Show had Superman fight their version of the KKK using real information about the Klan. This was a crippling blow to the organization, causing recruitment to drastically decrease. In response the KKK ordered a boycott of the Radio Show’s sponsor, Kellogg.