Originally called "Bib-Label Lithiated Lemon-Lime Soda," it was named after the main medicinal component it contained. Later it was renamed to "7 UP Lithiated Lemon Soda," and finally the even shorter "7 UP." While it's still pretty unclear where the "7 UP" came from, founder Charles Grigg once joked that it was intended to cure the "7 types of hangovers" humans experience.