A painting style based on the practice of working outdoors (plein-air painting) and characterized by rapid brushwork and an interest in depicting transient effects of light. Typical Impressionist subjects were landscapes and scenes of middle-class leisure. Impressionism originated in the early 1870s with a group of Paris-based artists, including Claude Monet, Berthe Morisot, Camille Pissarro and Auguste Renoir. The Impressionists organized eight group exhibitions between 1874 and 1886. Web resource here.

Berthe Morisot. Summer’s Day.  Oil on canvas. Ca. 1879. National Gallery, London.