library of congress2006_4_21On July 16, 2005, Philadelphia celebrated the 200th anniversary of Oliver Evans’s Orukter Amphibolos.
Evans, Oliver
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Spring 2006 | Volume 21, Issue 4
library of congress2006_4_21
On July 16, 2005, Philadelphia celebrated the 200th anniversary of Oliver Evans’s Orukter Amphibolos. Evans was Philadelphia’s, and perhaps America’s, most important early inventor, and the Orukter Amphibolos was a dredge he built to clean the floor of Philadelphia’s…
Innovations
