On This Day In History On This Day In History: Gordon Willard Allport American Psychologist And Developer Of Personality Trait Theory Was Born – On Nov 11, 1897 MessageToEagle.com | November 11, 2016 MessageToEagle.com – On November 11, 1897, American psychologist Gordon Willard Allport was born. He is today famous for developing the personality trait theory according to which traits are essentially Read More