1. Pepsi: The founder of Pepsi, Caleb Davis Bradham, originally wanted to become a doctor. However, personal circumstances forced him to give up his dream, and he became a pharmacist instead. His original invention, known as "Brad's Drink," was made from a mix of sugar, water, caramel, lemon oil, and nutmeg. Three years later, Bradham renamed his drink, which he believed aided digestion, to "Pepsi-Cola," taken from the word "dyspepsia", meaning indigestion.