National Irish Coffee Day is observed worldwide every January 25, celebrating the popular beverage known as Irish coffee, which consists of hot coffee, Irish whiskey, and cream. The drink was first served in 1943 by Joe Sheridan, a head chef at a restaurant in the Foynes Airport in County Limerick, Ireland, when he created it to warm passengers during a winter storm. The modern recipe was developed in the 1950s and gained popularity in the United States after Stanton Delaplane introduced it at Shannon Airport and subsequently convinced the owner of the Buena Vista Cafe in San Francisco to serve it. Irish coffee is recognized as a contemporary classic by the International Bartenders Association. On this day, people often enjoy Irish coffee in various settings, reflecting its rich history and cultural significance.