Martin Luther used his comedies to teach about the natural impulses of people and considered his works essential reading for instructing children in learning Latin. To speak Latin and gain proficiency, priests and nuns re-enacted his plays. 650 manuscripts created after 800 AD contained parts or all of his plays according to Claudia Villa. By copying his works, scribes in later generations were taught to write in Latin. Monasteries and convents used his works to learn Latin during the Middle Ages and the Renaissance.