Early Foundations (Late 19th to Early 20th Century) 1880s–1900s: The Beginnings of Psychological Interest in Art 1920s–1930s: Art as a Tool for Healing Formalization of Art Therapy (1940s–1950s) 1940s: The Birth of Art Therapy 1950s: Expansion and Recognition Scientific Research Begins (1960s–1970s) 1960s: Formal Studies on Art and Mental Health 1970s: Physiological Effects of Art…