A threshing machine is a device used in agriculture to separate grains from their stalks and husks. This process, known as threshing, is essential for preparing crops like wheat, barley, and oats for storage and consumption. The machine typically consists of a rotating drum that beats the harvested plants, loosening the grains while ejecting the unwanted material. Invented in the early 19th century, the threshing machine significantly increased the efficiency of grain processing compared to manual methods. It played a crucial role in the agricultural revolution, allowing farmers to harvest larger quantities of crops, which contributed to increased food production and improved economies in rural areas.