Step 1 : Introduction to the question "What is the oldest major soft drink brand still in continuous production in the United States?"
...Dr Pepper was first created in 1885 by pharmacist Charles Alderton in Waco, Texas, making it the oldest major soft drink brand in the United States still in continuous production. It predates Coca-Cola (1886), Pepsi (1893), and RC Cola (1905), all of which were also originally developed in pharmacies and soda fountains. Known for its distinctive blend of 23 flavors, Dr Pepper has maintained a continuous presence in the beverage market for well over a century, securing its lasting place in American consumer history and pop culture.