John Ericsson (July 31, 1803 – March 8, 1889) was a Swedish-American inventor and mechanical engineer, as was his brother Nils Ericson. He was born at Långbanshyttan in Värmland, Sweden, but primarily came to be active in England and the United States. He is remembered best for designing the steam locomotive Novelty (in partnership with engineer John Braithwaite) and the ironclad ship USS Monitor.
Read more about John Ericsson: Early Career, Propeller Design, Friendship With Cornelius H. DeLamater, Hot Air Engine, Ship Design, USS Monitor, Inventions, Fellowships, Monuments and Memorials