The primary object of History of International Relations is to introduce the students of the Department of International Relations to the origins of modern nation-state system and international relations, so that they will get familiar with basic concepts such as nationalism, liberalism, socialism, imperialism, and decolonization that have underlined some modern institutions; and with significant developments and events such as the French Revolution, Napoleonic Wars, Industrial Revolution, Bolshevik Revolution, World Wars, Cold War, and disintegration of the Soviet Union that have shaped modern international system.