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TIL That "Dumpster" is a proprietary eponym, or a brand name that is commonly used to refer to most similar products. It was named after the creators, the Dempster brothers.

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nWapG TIL The world’s oldest wooden wheel has been around for more than 5,000 years. It was found in 2002, approximately 12 miles south of Ljubljana, the capital of Slovenia, and is now housed in the city’s museum.
40na TIL: From having lived and worked in China, President Herbert Hoover and his wife were fluent in Mandarin Chinese, and would frequently have conversations in the language to prevent their staff from eavesdropping.
yQrZl TIL that frogs use their eyes to help them swallow food.
4AG5 TIL that a Russian scientist accidentally shot a proton beam through his own head with a large particle accelerator in 1978. Reportedly, he saw a flash “brighter than a thousand suns,” but did not feel any pain.
5aQ9 TIL that as of this month, “Hampster Dance”, one of the first Internet memes, turns 18 years old.