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TIL Africanized bee, known as Killer bees, are breed hybrids that accidentally escaped lab quarantine and since then have spread throughout the Americas.

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9Y8pB TIL That prior to WWII, many unconventional businesses in the United States produced the 1911 pistol. Among the most coveted examples today was made by the Singer Sewing Machine Company.
EgepV TIL that early semiconductors, before CAD, were made by hand drawing the circuit design on graph paper at an extremely enlarged scale, then cutting that design onto a film called Rubylith, which was used to create the final photolithographic mask. Repeat for all layers on a chip.
eAdL TIL that during the Cold War America used bears to test their ejector seats in supersonic jets.
OGklL TIL that Christians, Muslims, and Jews have all used roughly the same word for God due to the closeness of their cultures. Jesus of Nazareth would have called God "Elah," in Hebrew "Elohim," and later, Islam would call God "Allah."
yVJkJ TIL that Michael Jordan has an extreme fear of large bodies of water, which stems from a traumatic childhood incident where he nearly drowned. This fear is reason why he doesn't participate in water sports.