By the 1850s in the United States with railroads spanning the entire country, corporations needed more sophisticated organizations and the fact the first org chart was drawn in 1856 to just manage corporations and by the beginning of the 20th century, educators started realizing that there was a need for an educated management class to administer and execute these corporations because at least in the United States we were going from local economies to regional economies to a national economy, yet we did not have a trained management class and so in a brilliant insight, Harvard set up the first masters of business administration course called the MBA and the first graduating class in 1910 was the first of a cadre of business administrators that made the 20th century the modern corporate century.