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TIL during World War 2, Pittsburgh produced more steel and iron than all Axis powers—combined.

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7rXRM TIL that Peter Billingsley, the actor behind the iconic role of Ralphie in “A Christmas Story,” also appears in the Christmas movie classic “Elf.”
vZjx TIL that 74 soldiers marched across a bridge at the same rate of the bridges natural frequency (mechanical resonance). This eventually caused the bridge to collapse and ever since the incident, soldiers have been ordered to “break step” when crossing bridges.
kJ7YW TIL that the highest diversity of bee species is found in deserts and other temperate dry regions as opposed to tropical forests. So there are a lot more bee species in the US southwest than in the Amazon, and a lot more in Turkey than in the Congo.
Brx8y TIL that most post-war homes build in Japan are practically disposable: they have almost no resale value and typically last no longer than 30 years,
neago TIL of John Howland, an indentured servant boy who went overboard on The Mayflower and was miraculously saved. His descendants include: The Bush family, FDR, writers Emerson & Longfellow, Brigham Young & Joseph Smith, Chevy Chase and over 2 million other Americans.