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TIL Concrete is the second most consumed material in the world after water.

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via reddit.com

OPaY TIL that a “mail-order church” fought the IRS for tax-exempt status for 17 years. Status was granted in 2000. In 2007, the “church” earned $6 million per month, mostly by targeting low income and elderly persons who were told that donations are required to have their prayers answered.
VB7BG TIL that Mammoth Cave was used as the site of an experimental hospital to treat tuberculosis. 16 patients lived in darkness in buildings constructed underground. 5 patients died and the experiment was ended within 5 months.
JYZ8V TIL the young, unknown Afghan girl from the 1985 cover of National Geographic was located in 2002 and her identify was confirmed using iris recognition. She remembered being photographed in the mid-80s but had never seen the image of herself as a child before it was shown to her in January 2002.
5YJjp Today I learned the shamwow/slapchop guy was arrested for battery of a prostitute in 2009
WkbL4 TIL the longest jury deliberations lasted 4 1/2 months after 6 months of testimony in the McClure vs City of Long Beach trial. Jurors drank before testimony, took unauthorized vacations, and even lied about an illness to see a horse race.