From 1920 to 1933, alcohol was prohibited in the United States. Truly a sad time for lovers of all brews everywhere. Thankfully, in 1933, President Roosevelt decided to lift the prohibition on alcohol.
So on this date, April 6, 1933, Americans all across the United States lined up at their favorite bars or favorite public houses to have their first (LEGAL) alcoholic beverage in 13 years. Ever since that night, this day has been affectionately named, 'New Beer's Eve', a precursor to 'New Beers Day'.