Following the Impressionists and the Post-Impressionists came Fauvism, often considered the first "modern" genre of art. Just as the Impressionists revolutionized light, so did the fauvists rethink color, painting their canvases in bright, wild hues. After the Fauvists, modern art began to develop in all its forms, ranging from Expressionism, concerned with evoking emotion through objective works of art, to Cubism, the art of transposing a four-dimensional reality onto a flat canvas, to Abstract art. These new art forms pushed the limits of traditional notions of "art" and corresponded to the similar rapid changes that were taking place in human society, technology, and thought.