The document discusses the emergence and development of Realism in art from the mid-19th century, mentioning several influential Realist painters such as Corot, Courbet, Daumier, and Millet. Corot and Courbet painted landscapes that depicted nature realistically, and Courbet also painted self-portraits and scenes of everyday rural life. Daumier created satirical paintings that exposed social classes and issues. Millet painted scenes of peasants and rural workers toiling in the fields.