› added 5 years ago

86

TIL That in masonry, a "cornerstone" is the very first stone set as a reference point for all other stones, while a "keystone" in an arch is the very last stone put in place at the top to support the weight of every other stone.

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XNV6 TIL about the Rosewood massacre which was a racially motivated massacre of blacks and destruction of a black town that took place during the first week of January 1923 in rural Levy County, Florida.
9YP4X TIL the solar storm of 1859 caused worldwide electrical failure, with telegraph systems being knocked out, some throwing sparks and shocking operators. This event, if it occured today, would cause trillions in damages.
J1nLm TIL the belief that the two disasters involving the De Havilland Comet were caused by square passenger windows is a myth. The two planes involved actually used rectangular windows with rounded edges; and the "square windows" is actually the square cut-out for the ADF Antenna above the cockpit.
5EZP TIL Orange and Brown are essentially the same color, only differing in brightness.
oB9PR TIL that the Dixie Chicks are still de facto "banned" from country music radio due to criticizing President Bush back in 2003. Their music is never played on many country stations.