January 1st is the first day of the Gregorian calendar, and is commonly referred to as New Year's Day for this reason. People commonly begin New Year resolutions on January 1st. Famous birthdays include Betsy Ross, Paul Revere, and Verne Troyer. January 1st also marks National Hangover Day.
We have 16 holidays listed for January 1.
|National Bloody Mary Day||Food & Beverage||Cocktails, Liquor||U.S.|
|National Hangover Day||Food & Beverage||Beer, Beverage, Liquor||U.S.|
|New Year's Day||Special Interest||Activities||U.S.|