1893: Iron Men Of Lafayette Square – Christopher And Simpson

All the iron on Earth originated in large stars that existed before our Sun even formed. Iron is the final product of a star’s radioactive decay, which fuses hydrogen atoms to form ever heavier elements. When the hydrogen fuel is exhausted and sufficient mass accumulates in the core of the star, it no longer supports its own gravity, and explodes; or so I’m told. In that supernova explosion, huge chunks of iron can be thrown many light years into space. Such a chunk came to land in eastern Missouri’s St. Francois County and became Iron Mountain. 

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1858: Palmatary Maps The Square

Richard Compton and Camile Dry rightly deserve credit for their amazingly comprehensive 1875  pictorial map of St Louis. It is the standard by which others are judged, and certainly worth your study if new to the subject. I highly recommend the expandable version on the Library of Congress site: https://www.loc.gov/resource/g4164sm.gpm00001/?st=gallery

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