What did John Deere envent?

Answer 1

Deere invented the steel plow. During the 1800's, when people started moving to the Midwestern region of the U.S., the cast iron plows that were being used to break the sticky black soil of the great plains would clog and were inefficient. Using a worn out sawmill blade, Deere foraged a plow that had a very smooth surface and that would not clog up with soil.