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Answer 1 The first documented sale of hot dogs in America occurred on Coney Island in New York City in 1871. Charles Feltman is credited with popularizing the hot dog and selling it from a cart he opened in Coney Island in 1867. Prior to this, hot dogs were typically served on a plain white bun. The hot dog bun was a game-changer, allowing hot dogs to be easily transported, stored, and served - making them an even more popular food item.