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TIL that half of President John Tyler’s cabinet along with several congressmen were killed instantly when a cannon malfunctioned and exploded during a Potomac River dinner cruise. President Tyler personally assisted with the rescue efforts and married a girl he carried away on his back

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j6nrQ TIL there are over 200 "wind phones" in the US where grieving people can 'talk' to relatives - they feature an old-fashioned phone booth with a phone with a dial on it, and were first popularized in Japan after the Fukushima tsunami
QJd8p TIL that David Mech, who came up with the concept of the alpha wolf, later rejected the notion and now teaches against it.
OoDp1 TIL poor ventilation in your bedroom can result in increased carbon dioxide, much higher than standard safety levels. This is associated with poor sleep quality, headaches, and decline in cognitive performance the next day.
awaob TIL the Roman Catholic Church hired castrati, young boy vocalists who were castrated to prevent puberty allowing them to sing soprano, mezzo-soprano, or contralto well into their 40s. The practice started in the mid-1500s, reached its height in 1730, and ended in 1903. The last castrati died in 1922
KNZ4 TIL that Benjamin Franklin was not trusted to draft the Declaration of Independence for fear that he might conceal a joke in it.