The conversation between human and AI assistant.
[|Human|] Where did peanut butter and jelly sandwiches originate?
[|AI|] In 1901, the Boston Cooking School Magazine published the first known reference for a peanut butter and jelly sandwich. This magazine article called for "three very thin layers of bread and two of filling, one of peanut paste, whatever brand you prefer, and currant or crabapple jelly for the other."
[|Human|] 
Where did peanut butter and jelly sandwiches originate?