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TIL Compared with hunter-gatherers, industrialized peoples’ intestines have fewer kinds of microbes—and are missing at least one major group of ancient bacteria. Yet even with all of these extra microbes, hunter-gatherers have fewer gut ailments, such as Crohn’s disease, colitis, and colon cancer.

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mgWO TIL the name “scotch tape” came about because of the stereotype of Scots being cheap and there was little adhesive on the original product
gMa19 TIL the least-visited national park in the U.S. is the Gates of the Arctic National Park and Preserve in Alaska, which lies entirely north of the Arctic Circle and has "no established roads, trails, visitor facilities, or campgrounds."
LQemv TIL of the Scunthorpe Problem, which is the unintended blocking of names by internet filters due to profanity included within the name (liebshitz, cockburn, etc)
oRlJL TIL Ed Sheeran is the most-attended tour of all time
LM10 TIL that when photographer Yousef Karsh took a photo of Winston Churchill, Yousef took the cigar straight from Churchills mouth and took the photo. This was the grumpy result.