1947: Mascot Twinkie the Kid is introduced.

1947: Hostess introduces white Sno Balls (right). It takes about three years for the company to add the cream filling and distinctive pink color.

By Anne VanderMey, reporter @CNNMoney - Last updated July 26 2012: 5:42 AM ET
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Indra Nooyi's Pepsi challenge

By the numbers, PepsiCo has done a pretty good job since she took the helm six years ago. So why is the CEO taking so much heat from investors?