Focusing on the ancient, medieval, and early-modern eras, this collection considers the beginnings of Sino-Japanese Relations in the Ancient East Asian World, focusing on changes of the East Asian international system. It examines the establishment of the East Asian International Order in the 7th Century and the advance of Sino- Japanese relations in medieval times. It also considers the impact of initial contact with modern Western powers on modernization, and examines the points of rupture which deeply affected both cultures, for China the Opium War, and for Japan it the Black Ships of Commodore Matthew Perry and the Meiji Restoration. Based on research conducted jointly by Chinese and Japanese scholars, this collection provides a unique insight into the development of Chinese and Japanese culture from comparative perspectives, offering an in-depth study of the countries' political, religious and societal structures to deepen objective perception toward history and promote mutual understanding in East Asia.