BizSugar.com › Advertising › Pepsi vs Coke: advertising battle turns to social media

In the 1980s and 1990s the battle between the two dominant brands intensified to such an extent that the term “cola wars” was used to describe the feud. Each employed numerous advertising and marketing campaigns to outdo the other.The Pepsi Challenge ads showing people doing blind taste tests kicked off the fun in 1975.