Throughout history, diplomacy has been served as a means of creating and managing connections between nations, addressing requirements, and resolving a range of political, economic, social, and cultural issues. It is an axiom that the organization and establishment of states in ancient times differed from the structure of contemporary states. Hence, the nature of their interactions, diplomatic strategies and the appointment of representatives and their roles in foreign countries are entirely distinct from those of the past time. In the past, state diplomacy was temporary, confidential, conducted between two parties, and solely aimed at resolving political issues. Following the Treaty of Westphalia and the subsequent formation of the nation-state system, diplomacy has evolved into its contemporary form. This transformation has been influenced by the advent of modern technology and the proliferation of information and communication tools, which have significantly impacted various facets of human life at both national and international levels. Consequently, there has been a fundamental shift in the nature, scope, participants, objectives, influential factors, and operational mechanisms of diplomacy and diplomatic interactions among nations. This study aims to examine the topic of political science, with a specific focus on international relations professionals. It seeks to explore the distinctions between historical and contemporary diplomacy and to provide a comprehensive and effective response to this inquiry.