National Beer Day is not a national holiday, but when it hits this Sunday, it will likely be a cause to celebrate for bars owners and revelers alike.

Why April 7? Eighty-six years ago, a new federal law went into effect allowing the sale of beer containing less than 3.2% alcohol, the first legal alcohol allowed since Prohibition began in 1919.

Thank President Franklin D. Roosevelt, who signed the legislation, The Cullen-Harrison Act, in March 1933, which went into effect a month later. Enough states approved the 21st Amendment later that year to bring an end to Prohibition.

Some beer lovers a decade ago decided the day deserved celebration for its historic nature – they have a page – and social media has helped