Georges Seurat was a French Postimpressionist painter influenced by Impressionism who developed a new painting technique known as Pointillism. He believed that small dots of primary colors placed near each other would mix optically in the viewer's eye to form secondary colors. Seurat's most famous painting Sunday on La Grande Jatte uses this Pointillist technique to depict leisurely park scenes and has been interpreted as representing both the growing middle class and social tensions between classes in public spaces.