Whose idea was prohibition?

Prohibition in the United States was largely driven by the temperance movement, which sought to reduce or eliminate alcohol consumption due to its perceived negative social effects. Key figures in this movement included activists like Frances Willard and organizations such as the Women's Christian Temperance Union (WCTU) and the Anti-Saloon League. The culmination of these efforts led to the passage of the 18th Amendment in 1919, which enacted nationwide prohibition.