John deere invented the steel plow in 1837
He invented the steel plow in 1837.
According to the About.com website (refer to the link, below), John Deer invented the steel plow in 1837.
A man named John Deere invented the steel-tipped plow in 1837.
John Deere invented the steel toothed plow in 1837. It worked better than any previously created plow, and revolutionized farming.
1837
The steel plow
John Deere invented the steel (all by himself)
1837
Mike Hunt
John Deere
John Deere