 The party heavily supported the Eighteenth Amendment to the United States Constitution , which banned the sale of alcohol, and resulted in the US period known as Prohibition (1919–33).
<clarity>  The party heavily supported the Eighteenth Amendment to the United States Constitution , which banned the sale of alcohol, and resulted in the US period known as Prohibition (1919–33).
 The party heavily supported the Eighteenth Amendment to the United States Constitution , which banned the sale of alcohol, and resulted in the US period known as (1919–33).