In his best-known and largest painting, Georges Seurat depicted people relaxing in a suburban park on an island in the Seine River called La Grande Jatte. The artist worked on the painting in several campaigns, beginning in 1884 with a layer of small horizontal brushstrokes of complementary colors. He later added small dots, also in complementary colors, that appear as solid and luminous forms when seen from a distance.Seurat's use of this highly systematic and "scientific" technique, subsequently called Pointillism, distinguished his art from the more intuitive approach to painting used by the Impressionists. Although Seurat embraced the subject matter of modern life preferred by artists such as Claude Monet and Pierre-Auguste Renoir, he went beyond their concern for capturing the accidental and instantaneous qualities of light in nature. Seurat sought to evoke permanence by recalling the art of the past, especially Egyptian and Greek sculpture and even Italian Renaissance frescoes. As he explained to the French poet Gustave Kahn, "The Panathenaeans of Phidias formed a procession. I want to make modern people, in their essential traits, move about as they do on those friezes, and place them on canvases organized by harmonies of color." Some contemporary critics, however, found his figures to be less a nod to earlier art history than a commentary on the posturing and artificiality of modern Parisian society.Seurat made the final changes to La Grande Jatte in 1889. He restretched the canvas in order to add a painted border of red, orange, and blue dots that provides a visual transition between the interior of the painting and his specially designed white frame.