The vertebrate cerebrum (brain) is formed by two cerebral hemispheres that are separated by a groove, the medial longitudinal fissure.The brain can thus be described as being divided into left and right cerebral hemispheres.n eutherian (placental) mammals, the hemispheres are linked by the corpus callosum, a very large bundle of nerve fibers. Smaller commissures, including the anterior commissure, the posterior commissure and the hippocampal commissure also join the hemispheres and these are also present in other vertebrates.
Although today ubiquitous across the globe, the peanut (Arachis hypogaea) was native only to South America, and it is believed to come from the foothills of the Andes in Bolivia and Peru. Ancient, anthropologists have found evidence of peanut cultivation dating back at least 7,600 years.
Peanut-Butter. It is believed that in 1840, Rose Davis of New York made the first prototype peanut butter. She got the recipe from her son who saw it being made in Cuba by natives. Later on in 1884 the Canadian Marcellus Gilmore Edson first patented peanut paste. This was followed in 1895 by Dr John Harvey Kellogg who patented the process of creating peanut butter from raw peanuts which he marketed as a protein food product for people who could not chew on solid food. Then in 1903, the American Dr Ambrose Straub patented a peanut-butter making machine.