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70

TIL of the "Southern Strategy", in which GOP politicians like Goldwater and Nixon developed campaign strategies designed to appeal to southern racism, successfully realigning the white & conservative Democratic voters in the South to vote Republican, further pushing the party rightward

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GAlG5 TIL Allied tanks were mired in the hedgerows of the French countryside. An American Sgt. came up with the idea to deconstruct Nazi anti-tank "hedgehogs" and re-weld them into crude brush cutters, mounted to the front of Sherman tanks. It was hugely successful and allowed Allied forces to break out.
7pMO TIL that (very) rough estimates suggest that Wikipedia contains about 4% of the extant sum of all human knowledge, with 5.6 million red links (and growing).
PYxOO TIL that in 1970 the fifa ball was changed to black and white (from traditional brown) so the viewer watching in b/w TV's will be able to see the ball clearly,even though the vast majority of footballs were then still brown.
DGgP TIL Google wraps its undersea fiber optic cables in Kevlar to protect them from shark bites.
X0EmE TIL Napoleon’s military tactics are still utilized by armies, and studied by students in academies around the world 200 years later.