Fact 1: helped define the REVOLUTIONARY DEVELOPMENT of the plastc arts Fact 2: Was good friends with pablo Picasso. Fact 3: matisse focused on landscapes and still-life's. fact 4: His style often changed from seeing other artists. Fact 5: he was in a wheel chair for part of his life and during that time he made some of his best pieces. fact6: he discovered art when he was sick and his mother brought him art supplies to ease his boredom.