Your Favorite Fast Food Is Probably From California - The New York Times
What was the world's first real chain restaurant? - Quora
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The Oldest Fast-Food Chains in America — Eat This Not That
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19 Bucket-List Regional Fast-Food Chains To Try Before You Die | First We Feast
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Do You Know the Country's 15 Oldest Chain Restaurants?
Can you guess the 10 oldest restaurant chains in America? - EverybodyCraves
The 30 Oldest Restaurant Chains in America - 24/7 Wall St.
What was the first fast food chain ever? - Quora
The Oldest Fast-Food Chains in America — Eat This Not That
The 18 Oldest Restaurants in America - 24/7 Wall St.
