If you were looking for a reason to have a cold beer after work Monday (and who isn't?) here's one. Today is New Beer's Eve, and unofficial holiday in the U.S. celebrating the end of Prohibition in the United States on April 6.

We can thank President Franklin D. Roosevelt (my new favorite president) for the end of Prohibition on March 23, 1933. However, sales of beer in the U.S would become legal on April 7, 1933.

Beer had to have an alcohol content less than 3.2% because it was considered too low to produce intoxication. On the evening of April 6, people lined up outside breweries and taverns, waiting for midnight when they would be able to legally purchase beer for the first time in over 13 years.

Since then, the night of April 6 has been referred to as "New Beer's Eve" and April 7 is known as "National Beer Day".