This is a good piece of video on Youtube titled History of Project Management. It is quite interesting and though provoking kind of video that seriously tries to provide good amount of information on how project management could have begun years back. What made it happen? What could have generated the requirement of project management? What could have been the starting point of project management? How Project Management got evolved?
Was it PERT, IPMA, PMI, PMBoK or was it something else that created the need of its existence? Was it GANTT in 20th century or it had taken birth way back in the days of Giza Pyramids. Probably Giza Pyramids is the best example where one can see well structured and matured project management in place. Have a look at following video and put your ideas right about the subject, in right place.