The document discusses the origins and history of Impressionism. It emerged in response to industrialization and new photography techniques. Artists gathered around Manet and exhibited works with loose brushstrokes and bright colors mixed on the canvas. Influences included the Barbizon school, Spanish art, and Japanese prints. Techniques included painting en plein air to capture light and color, using short brushstrokes and leaving the mixing of colors to the eye. Key artists included Manet, Monet, Renoir, Degas, Seurat, and others who painted landscapes, scenes of modern life, and effects of light.