Diplomacy is one of the main political activities of the statecraft. Rather than resorting to use of force, states use diplomacy to advance their interests and secure foreign policy objectives through negotiation, influence, and persuasion. Diplomacy as a political activity is not a modern phenomenon. Its history is as old as the history of human civilizations. Different polities have always coexisted with other powers and they used the art of persuasion and influence for advancing their interests. Hence, diplomacy has always remained crucial in shaping the political milieu of the world during different eras. At the same time, it has gone through a dynamic process of evolution. DIPL 2130 reviews the history of diplomacy and its evolution.
Ahmadzai, Atal, "History of Diplomacy" (2016). Diplomacy Syllabi. 47.