Today marks the 30th anniversary of the launch of New Coke. When The Coca-Cola Company made the bold decision to change the formula of its 99-year-old flagship product in April 1985, mayhem ensued.

More than 1,000 calls flooded Coke's consumer hotline per day. Loyalist clubs formed, with members hoarding cases of original Coca-Cola and creating a black market. Protestors picketed the company's Atlanta headquarters. And Coke employees were barraged with questions and complains from friends and neighbors.

Passionate fans also took the time to write letters pleading Coke to bring back their beloved brand. Some of them were funny, others were emotional. All were sincere.

Here are a few of our favorites from the archives: 



New Coke response letter



New Coke response letter



New Coke response letter



New Coke response letter



New Coke response letter



New Coke response letter



New Coke response letter