Impressionism began with a group of Parisian painters who rejected the polished finish and historical subjects demanded by the official Salon. Instead they painted contemporary life, often outdoors (en plein air), trying to catch the momentary effect of light and atmosphere before it changed. Their technique - visible, broken brushstrokes and unblended color placed side by side - scandalized critics and gave the movement its name when a reviewer mocked Claude Monet's Impression, Sunrise (1872). Within a generation the movement had redone the rules of Western painting and become the public's best-loved art style.
Claude Monet, Impression, Sunrise, 1872 - the painting that named the movement.Public domain (author died 99 years ago) · source
Defining characteristics
Visible, broken brushstrokes that keep the surface lively
Light and its changing effects treated as the true subject
En plein air (outdoor) painting, finishing works in a single sitting when possible
Everyday modern subjects: boulevards, cafés, gardens, railways
Soft edges and forms dissolved in atmosphere
Pure, often unmixed color laid side by side for optical mixing
Key figures
Claude Monet(1840-1926) — Named the movement and pushed serial studies of light to their end
Pierre-Auguste Renoir(1841-1919) — Brought warmth and figuration to Impressionist light
Edgar Degas(1834-1917) — Degas combined Impressionist color with radical, cropped compositions
Camille Pissarro(1830-1903) — The movement's elder statesman and mentor figure
Berthe Morisot(1841-1895) — Core exhibitor whose domestic scenes match the movement's boldest brushwork