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TIL that despite the popular depiction in films and television, Manhattan has almost no alleys. The Commissioners Plan of 1811 designed the city's grid layout without alleyways to maximize the limited space. The few alleys that remain mostly predate that plan.

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XEEjE According to a new study, pregnant mothers may be able to influence whether their children develop eczema and asthma, simply by having a dog in the home. However, the study also found that this “protective effect” likely has a limited lifespan.
xWrD TIL the government once forced AT&T, DuPont, and other tech giants to release all their patents. This forced them to compete with smaller companies and sparked technological progress. The policy ended in the Reagan administration.
1aAxP TIL In 2003, the U.S developed playing cards to help identify the most-wanted members of Saddam Hussein's government. 46 out of 52 have been captured.
W6Ko TIL that Colorado and Washington are the two least religious states in the country.
d8jlZ TIL In 1980, a woman named Jean Hilliard had a car accident. She walked 2 miles in freezing weather to her friend's house and collapsed 15 feet away from the door. The temperature dropped to −22 °F (−30 °C). She was found frozen the next morning after spending 6 hours as a popsicle. She survived.