"The story of "new Coke" is widely recalled, but the context is often forgotten. In 1985, The Coca-Cola Company's share lead over its chief competitor, in its flagship market, with its flagship product, had been slowly slipping for 15 consecutive years. The cola category in general was lethargic. Consumer preference for Coca-Cola was dipping, as was consumer awareness. That changed, of course, in the summer of 1985 as the consumer outcry over "new Coke" was replaced by consumer affection for Coca-Cola classic. The fabled secret formula for Coca-Cola was changed, adopting a formula preferred in taste tests of nearly 200,000 consumers. What these tests didn't show, of course, was the bond consumers felt with their Coca-Cola — something they didn't want anyone, including The Coca-Cola Company, tampering with..."
EN, the story is here. Y'all might want to read it because it doesn't look like you were around to remember it.