In the mid-nineteenth century, William Sweer was the first to coin the expression "mental cleanliness", which can be viewed as the antecedent to contemporary ways to deal with take a shot at advancing positive mental health. Dorothea Dix (1804–1889) was an essential figure in the improvement of "mental cleanliness" development. Dix was a teacher who attempted for the duration of her life to help individuals with mental clutters, and to reveal the regrettable conditions into which they were put. This was known as the "mental cleanliness movement".[