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TIL Type A personality theory had early association with the smoking industry, who funded researchers in hopes of proving it was personality that lead to heart disease, not tobacco use.

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xV5Zg TIL puppy mills breed over 2 million puppies each year, and an estimated 1.2 million dogs are euthanized in shelters every year.
5YbZk TIL that during Haydn's Symphony No. 45 ("Farewell"), the orchestra gradually leaves the stage one-by-one during the performance. Haydn wrote it this way to subtly tell Duke Esterházy that the musicians deserved a vacation.
oB64L TIL that alot of college credits do not expire like most people believe and it's pretty easy to pick up where you left off 10+ years ago depending on your field of study.
xVA4b TIL of Peribsen, an early Egyptian pharaoh whose royal name identified him with the god Seth, rather than with Horus as tradition dictated (particularly strange, since the two gods were mortal enemies). Little is known of his reign, but he's conspicuously absent from later king lists.
XEnnj TIL that Jack Kevorkian, a major proponent of euthanasia who assisted in the medically-induced deaths of up to 130 people released a full-length Jazz album in which he played the flute.