It has become an iconic anti-war symbol and one of the most powerful anti-war paintings in history. It shows the results of the casual practice bombing by Hitler's German air force, acting in support of General Francisco Franco during the Spanish Civil War, of the little village of Guernica, Spain on April 26, 1937.
Quick Answer. The normal maximum mouth opening (MMO) is approximately 48 millimeters for humans. The ability to position three fingers of either the left or the right hand in the mouth between the upper and the lower front teeth indicates normal size of the mouth. Continue Reading.
Insertion of four fingers of the right hand in the mouth yielded an average MMO of 58.1 millimeters, while the width of four fingers of the left hand gave 57.5 millimeter, according to a 2003 study in the Journal of Canadian Dental Association. Learn more about Human Anatomy.