Peanut butter, anybody?
For those of you wondering how someone could have invented the (in)famous peanut butter and jelly sandwich, an American staple, please read on:
1880 - A St. Louis physician, Dr Ambrose W. Straub, crushed peanuts into a paste for his geriatric patients with bad teeth. At the 1893 Chicago World's Fair, also known as the World's Columbian Exposition, his invention gained exposure and popularity.
1904 - Bayle Food Products took its new peanut butter to the 1904 St. Louis World Fair. It was a big success, selling out in three days at a penny-a-sample, earning a profit of USD 705.11. Soon grocers across America were selling bulk peanut butter in large wooden tubs to satisfy their customers' demand.
1920s-1930s - Commercial brands of peanut butter such as Peter Pan and Skippy were introduced.
1941-1945 - Both peanut butter and jelly were on the US Military ration menus in World War II. It is said that the American soldiers added jelly to their peanut butter to make it more palatable. Peanut butter provided an inexpensive and high protein alternative to meat for soldiers. It was an instant hit and returning servicemen made peanut butter and jelly sales soar in the United States. Food historians haven't found any ads or other mentions of peanut butter and jelly sandwiches before the 1940s.