After the nomadic rampage of the 4th century, Tuoba Wei Dynasty & the Southern Chinese Dynasties, respectively, renewed historical contacts with the rest of the world, i.e., Japan to the east, ancient Burma/Indochina/India/Ceylon to the south, Central Asia to the west, and Arab/Persia/Roman further away. Nevertheless, Japan's history in the Fourth Century became forever "mysterious" as a result of Northern China's disintegration. With Tuoba Wei China developing the northern Silk Road, Liang Dynasty of southern China underwent a prosperous sea route exchange with the rest of the world. Monk Fa-Shien's return trip from India had been widely analyzed to infer a possible blow-away to the Mexico coastline before going the opposite direction to China. Often researched upon by scholars would be a drawing by Liang Dynasty's Emperor Yuandi, entitled "zhi [duty or post] gong [tribute] tu [picture]" [Liang chih-kung-t'u]. Liang chih-kung-t'u, whose original drawing possibly destroyed together with 140,000 volumes of books at the time of Emperor Yuandi's death, was supposed to be a recollection drawing works of the emissaries who had visited Jingzhou the garrison city where Yuandi had stationed throughout dozens of years. The point to make here is that Liang Dynasty had apparently received delegations from 2-3 dozen statelets covering the countries mentioned earlier. The drawing's minute details about the ancient countries in today's Afghanistan and Iran and their emissaries absolutely corroborated the facts that China's linkage with Central Asia was live and frequent , yielding substantial validity to the person of Monk Hui-shen and his story of the trip to the American continent.