Long-Lived Brands

Slap some Velveeta, Philadelphia Cream Cheese, Miracle Whip, Heinz Ketchup and Spam onto two slabs of Wonder Bread and what do you have? Yes, something perhaps unpalatable, unpleasing or worse. What you also have, however, is something enduring: Those six brands have managed to survive for 75 years or more. To celebrate the 75th birthday of Spam and Kraft Macaroni & Cheese this year -- as well as Oreo's 100th -- we took a look at some of the most iconic American food brands, where they came from and how they've stayed so well-preserved.