Based on the Neo-Impressionism definition, it was a phrase established in 1886 by French art critic Fénéon to describe an avant-garde art movement that thrived primarily in France from 1886 until 1906. The Neo-Impressionism artists, led by Georges Seurat, rejected the immediacy of Impressionism in lieu of a calculated painting approach based on science and the understanding of optics. Neo-Impressionism artists came to feel that distinct spots of pigment result in greater color vitality than the traditional mixing of colors on the palette.