PS 84 John Ericsson invented the USS Monitor during the Civil War. It was built in Greenpoint. It was made of iron and used its steam engine to move.

PS 84

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John Ericsson invented the USS Monitor during the Civil War. It was built in Greenpoint. It was made of iron and used its steam engine to move.

John Ericsson invented the USS Monitor during the Civil War. It was built in Greenpoint. It was made of iron and used its steam engine to move.

4 of 20