Which of the following carbonated soft drinks were introduced first?

Dr. Pepper is considered the first carbonated soft drink because it was introduced in 1885, predating other popular carbonated beverages like Coca-Cola (introduced in 1886) and Pepsi (introduced in 1893). Dr. Pepper's unique blend of 23 flavors, created by pharmacist Charles Alderton, made it stand out from other beverages of its time and contributed to its early success. Its introduction before Coca-Cola and Pepsi solidified its position as the first carbonated soft drink.