The history of occupational therapy began in the 1700s during Europe's Age of Enlightenment. Philosophers such as Pinel and Tuke believed that purposeful activity could benefit the mental health of institutionalized individuals. They incorporated occupations and work activities into treatment. Over time, the moral treatment philosophy spread and occupational therapy emerged as a distinct profession in the early 1900s. Key figures established the foundations of the field and advocated for its role in healthcare. Occupational therapy aims to enable participation in meaningful activities and draws from various disciplines to promote health and well-being through occupation.