Fauvism was an early 20th century art movement characterized by vibrant colors and bold brushwork. It began around 1904 in France and lasted until around 1908, influenced initially by Post-Impressionists like Van Gogh and Gauguin. French painter Henri Matisse is considered the founder of the movement. Critics derisively called the Fauves "wild beasts" due to their radical use of unnatural, emotionally expressive colors that broke from realistic representation. Key elements of Fauvism include a radical use of color and strong unified compositions created with bold brushstrokes.