The Blaine Act was passed by the US Senate on February 17th, 1933.
The act put an end to the Prohibition era (1920-1933) with the repeal of the Eighteenth Amendment to the US Constitution which prohibited the "production, transport, and sale of alcohol", but not the actual consumption.
Though it was meant to curb crime, corruption, social problems, and improve public health and hygiene, alcohol prohibition is largely considered to be a failure. This is due in no small part to the large number of illegal underground production and selling points that popped up in response, making enforcement of the law close to impossible. The loss in tax revenue was also catastrophic for the economy, which would soon have to endure the Great Depression in 1929.
The Blaine Act's passing initiated the ratification of the Twenty-first Amendment, which called for the repeal of the Eighteenth Amendment, and was passed in late 1933.