Statistics for occurrence #1 of “Pittsburg, Pa.” in entry roebling-john-augustus of Harper's Encyclopedia of United States History:
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Civil engineer: born in Muhlhausen, Germany, June
12, 1806; graduated at the Berlin Royal Polytechnic School in 1826; came to the United States in 1829, and settled near Pittsburg, Pa. Later he began the manufacture of iron and steel wire, which he discovered could be used with efficacy in the building of bridges.
In 1844-45 he directed the construction of a bridge over the Alleg...
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