The American Impressionism, California School was active from 1900 to around 1940. Prior to 1900, traditional landscape painting was dominant. Impressionism in California was strongest between 1900 and 1915. After 1915, several other modern art movements co-existed. By looking at examples of paintings that embody hints of other art movements, one can see the gradual shift from traditional landscape-influenced paintings to Modernist-influenced paintings via Impressionism.Paintings are classified as Impressionist based on characteristics such as their technical application of brushwork, palette and faithful replication of natural lighting. This labeling does not preclude other art styles, however, from influencing the same painting. Art movements are never as pure as historical classifications would lead you to believe.  This is especially true in California where art movements ended their migration at the Pacific Ocean from the East coast of America. Various movements tended to linger in California and co-mingle in a unique and interesting fashion.