Impressionism began in Paris in the 1860s as artists attempted to capture moments in time through short, thick brush strokes of unmixed paint applied wet-on-wet to depict natural light and shadows. While initially unpopular for its lack of detail, Impressionism gained acceptance by the 1880s and featured artists such as Monet, Renoir, Pissarro, and Sisley painting outdoors. Pointillism developed from Impressionism using dots of pure color instead of brush strokes to create shimmering effects.