Fauvism was an early 20th century art movement characterized by bold, vibrant colors and exaggerated shapes. It started in 1905 when works by Henri Matisse and Andre Derain were exhibited at the Salon d'Automne in Paris and dubbed "Les Fauves" (wild beasts) by art critic Louis Vauxcelles due to their bright, unrestrained colors. Key Fauvist artists included Matisse, known for experimenting with color and form; Derain, who worked with Matisse in Collioure and painted London scenes; and Maurice de Vlaminck, who met Derain in 1900 and was best known for his Fauvist works from 1905-1912.