Coca-Cola
New Coke

On April 23, 1985, Coca-Cola, amid much publicity, attempted to change the formula of the drink with "New Coke". Follow-up taste tests revealed most consumers preferred the taste of New Coke to both old Coke and Pepsi but Coca-Cola management was unprepared for the public's nostalgia for the old drink, leading to a backlash. The company gave in to protests and returned to the old formula under the name Coca-Cola Classic, on July 10, 1985. "New Coke" remained available and was renamed Coke II in 1992; it was discontinued in 2002.
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