Silk Road: The Silk Road was a network of trade routes connecting Europe and Asia for centuries. It facilitated cultural exchange and the flow of goods between various civilizations, including those under East Asian empires.
Tributary System: The tributary system was a form of diplomatic relations practiced by China towards neighboring countries during certain periods. It involved receiving tribute from other states as a sign of their submission or vassalage.
Isolationism: Isolationism refers to a policy or practice where nations intentionally limit their involvement with foreign countries or international affairs. During certain periods, some East Asian empires adopted isolationist policies to protect their cultures and economies.