The movement in the 1800s that advocated for the prohibition of alcohol was the Temperance Movement. This social reform movement emerged primarily in the United States and sought to curb alcohol consumption, which many reformers believed was linked to social problems such as poverty, violence, and family disintegration. Various organizations were established, including the American Temperance Society in 1826, promoting the idea that sobriety would lead to a more moral and productive society. The movement gained momentum throughout the 19th century, culminating in the establishment of Prohibition in 1920 with the 18th Amendment, although it was later repealed in 1933.