Today, November 19, 2013, is National Carbonated Beverage with Caffeine Day. As far back as ancient Rome, people sang the praises of naturally carbonated water for its curative powers. By the end of the 18th century scientists had unraveled the mystery of carbonation, and were able to make carbonated water by infusing in carbon dioxide. Soon after, flavoring was added, and soda was born. In the late 1800s, caffeine was added, and the rest is history.