Although the preparation of pisco-based mixed beverages possibly dates back to the 1700s, historians and drink experts agree that the cocktail as it is known today was invented in the early 1920s in Lima, the capital of Peru, by the American bartender Victor Vaughen Morris.[1] Morris left the United States in 1903 to work in Cerro de Pasco, a city in central Peru. In 1916, he opened Morris' Bar in Lima, and his saloon quickly became a popular spot for the Peruvian upper class and English-speaking foreigners. The oldest known mentions of the pisco sour are found in newspaper and magazine advertisements, dating to the early 1920s, for Morris and his bar published in Peru and Chile.