L'Origine du monde is a picture painted in oil on canvas by the French painter Gustave Courbet in 1866. It is a close-up view of the vulva and abdomen of a naked woman, lying on a bed with legs spread. From Wikipedia
A trove of explicit 19th-century correspondence between the painter and a Parisian socialite was discovered in a Besançon library, offering new insights into his life and psyche.