Air Traffic Control will celebrate 100 years of service in 2020. The history of its evolution over that time is the subject of a presentation I 
made for Embry Riddle University’s History of Aviation Program at their Prescott, AZ campus. The presentation drew a full house including students, pilots and many from the local community.
At this time Embry Riddle has my presentation available to the general public on their website. http://commons.erau.edu/aviation-history/9
