It’s History

The Dangerous Military History of California's Mare Island
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I never knew the navy flew a mid-air hangar
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Before the Willis Tower, Chicago had a different architectural titan. Built in 1905, the original Sears Tower was the centerpiece of the Homan Square mega-complex — then the largest commercial complex on Earth. This episode explores the forgotten history of the original Sears Tower and Homan Square: how Richard Warren Sears built an industrial empire from small-town rail depots; the logistical engineering behind the first "same-day shipping" system; and why the retail giant eventually collapsed into a record‑breaking abandoned ghost town. Henry Ford famously visited to study its mass-production methods.

#sears #chicago #history
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Philadelphia City Hall is a monumental 19th-century engineering feat—built with 88 million bricks and foundation walls up to 22 feet thick. This unreinforced masonry giant was intended as the pinnacle of modern design but was soon rendered obsolete by the rise of steel-frame skyscrapers. This episode explores how that construction blunder became a permanent fixture. Topics include the "Gentleman's Agreement" about Philadelphia’s skyline, the engineering required to protect subway lines beneath the tower, and hidden architectural features like the Whispering Arches and the "Curse of Billy Penn." #phillyhistory #architecture #hiddenhistory
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Camp Hero: real base, strange claims
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