Editor's note: The use of peanuts dates to the Atzecs and Incas, and peanut paste may have been used by the Aztec as a toothache remedy in the first century of the Common Era. Marcelus Gilmore Edson of Montreal, Quebec was the first to patent peanut butter in 1884. Peanut butter is a food paste popular in many Countries. Peanut butter is an excellent source of protein, dietary fibre, vitamin E, niacin, vitamin B6 and pantothenic acid. Also high in content are the dietary minerals manganese, magnesium, zinc, phosphorus and copper.