About this term
Source: Oxford University Press
Term generally applied to a movement in art in France in the late 19th century. The movement gave rise to such ancillaries as American Impressionism. The primary use of the term Impressionist is for a group of French painters who worked between around 1860 and 1900, especially to describe their works of the later 1860s to mid-1880s. These artists include Frédéric Bazille, Paul Cézanne, Edgar Degas, Edouard Manet, Claude Monet, Berthe Morisot, Camille Pissarro, Auguste Renoir and Alfred Sisley, as well as Mary Cassatt, Gustave Caillebotte (who was also an important early collector), Eva Gonzalès, Armand Guillaumin and Stanislas Lépine. The movement was anti-academic in its formal aspects and involved the establishment of venues other than the official Salon for showing and selling paintings.
From Grove Art Online