Impressionism emerged from a group of Paris-based painters who held their first independent exhibition in 1874, deliberately outside the official Salon system. Monet, Renoir, Sisley, Pissarro, Berthe Morisot and Edgar Degas developed a shared commitment to painting sensory experience — light as it falls in a particular instant, colour as it appears in the open air, movement arrested in a fraction of a second. The critic Louis Leroy coined 'Impressionism' as a mockery of Monet's Impression, Sunrise — the artists adopted the name defiantly. Their innovations: painting in full daylight from observation, using unmixed colour directly from the tube, accepting visible brushwork rather than disguising it. The movement transformed Western art and directly generated Post-Impressionism, Fauvism, and everything that followed.