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TIL that the earliest known writing dates back to around 3000 B.C.E. and was likely invented by the Sumerians in southern Iraq. It was used by temple officials to record the allocation of rations and movement of goods. The earliest texts were pictures (pictographs) of the items being recorded.

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vP1pL TIL the dial on most toasters is not a minute timer. Instead, there's a metal strip that curves when heated, and the numerical setting simply tells the toaster how far that strip must bend before it triggers the toast to pop.
YpMn7 TIL U.S. flight attendants have higher rates of breast cancer, uterine cancer, gastrointestinal cancer, thyroid cancer, and cervical cancer, when compared with the general public, likely due to regular exposure to cosmic ionizing radiation
KpYw TIL 1969, 90 percent of all children walked to school, as schools were part of complete neighborhoods, but in 2002 only 31 percent walked to school due to the impact of sprawl
yr88 TIL: Islamic countries are one of the top Porn users.
yVQbX TIL TIL After he died Einstein’s family directed that he—meaning all of him—be cremated. Dr. Thomas Harvey, the pathologist who performed the autopsy, decided to remove Albert’s brain before releasing his body to the undertakers. He stored Einstein’s brain in his home for 20+ years in Mason jars