Impressionism emerged in the second half of the 19th century among Paris-based artists. It depicted the fleeting effects of light and color through freely brushed strokes and everyday subjects painted outdoors in natural light. Inspired by Delacroix's expressive brushwork and study of color optics, Impressionists broke from classical techniques to capture transient visual impressions rather than detailed renderings, reflecting photography's influence while allowing for subjective expression. This movement had a profound impact on styles that followed like Post-Impressionism and laid the groundwork for modern art.