What need led to john deere’s 1837 invention?

John Deere invented the steel plow in 1837 when the Middle-West was being settled

Explanation:n 1837, Deere developed and manufactured the first commercially successful cast-steel plow. The wrought-iron framed plow had a polished steel share. This made it ideal for the tough soil of the Midwest and worked better than other plows. By early 1838, Deere completed his first steel plow.

after the roman empire, the catholic church began to unify by taking on many duties of a government.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)