Sharecropping is a system of agriculture in which a landowner allows a tenant to use the land in return for a share of the crops produced on the land. Sharecropping has a long history and there are a wide range of different situations and types of agreements that have used a form of the system. Some are governed by tradition, and others by law. Legal contract systems such as the Italian mezzadria, the French métayage, the Spanish mediero, or the Islamic system of muqasat, occur widely.[citation needed]