After the civil war American artists, increasingly influenced by French art, became more diverse and adventurous. The grandiose landscapes of the “Hudson River” school were superseded by works depicting atmospheric and transient effects. A vibrant art market was fuelled by a new class of wealthy patron, new galleries, dealers and art journals. Impressionism became a highly important art form. Meanwhile, the “Ashcan” painters attempted something dramatically new: depicting life in the overcrowded cities as the country’s new industrial power was fuelled by massive immigration. This was a new art form and truly American.