Cotton is from a plant. It is thousands of years old and it makes most of what we wear. It also makes bedding. It was originally harvested painfully because it was harvested by hand. Before being cleaned it has dirt on it. It also has leaves on it. This means it is very dirty. So in the late 1700s Eli Whitney invented a machine that cleans cotton. Now cotton is still used on a lot of things. Cotton is extremely important.