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TIL that radon gas is largest contributor of natural radiation to human beings, and radon is the leading environmental cause of lung cancer.

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N7aA6 TIL of Sidney Gottlieb, who headed the CIA’s MK-Ultra LSD mind control experiments. Known as the "Black Sorcerer" and the "Dirty Trickster,” he retired to an ecologically friendly home, where he raised goats, ate yogurt and advocated peace and environmentalism. He also ran a leper hospital in India.
OWoX TIL that Diana Ross, who sang “Ain’t No Mountain High Enough,” lost her ex-husband to a mountain climbing accident.
WkOEY TIL Turkey granted women full political rights before many other nations. Founder of Turkey Atatürk said:"There is no logical explanation for the political disenfranchisement of women. Any hesitation and negative mentality on this subject is nothing more than a fading social phenomenon of the past."
KQaE TIL that there are completely Black Chickens that have black plumage, black legs and nails, black beak and tongue, black comb and wattles, black meat and bones and even dark organs.
P1Yrg TIL that less than half of all societies kiss with their lips, according to a study of 168 cultures from around the world and a professor of anthropology at the University of Nevada Las Vegas found that only 46% use lip-to-lip kissing in a romantic sense, excluding things like parent-child kissing.