Cotton gin: A machine invented by Eli Whitney that made it easier and faster to separate cotton seeds from the fiber. This invention revolutionized cotton farming in America.
Mechanical reaper: A device developed by Cyrus McCormick that could cut down wheat more efficiently than manual labor. It greatly increased crop production during the 19th century.
Steam engine: An innovation that powered various machines used in agriculture, such as threshers and tractors. It replaced human or animal power with steam power, making farm work faster and more efficient.