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The first-ever Potbelly's sandwich shop opened its doors in Chicago in the 1970s.
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The submarine sandwich chain, which bills itself the "Neighborhood Sandwich Shop," was started by Peter Hastings and his wife. And since the shop was founded, it has opened stores in communities around the world.
Prior to becoming a force in the restaurant industry, Potbelly started out as a small antique store in 1977 on Lincoln Avenue in the Windy City. The shop, where Peter would refurbish potbelly stoves, was owned by the Hastings.
The business was doing well, but the couple was convinced they could do even better, according to Potbelly's website.
So the Hastingses decided to get a little creative. By 1977, they decided to make toasted sandwiches and homemade desserts to draw in customers.