Sun Tzu Li Quan and Du Mu. Of the military texts written before the unification of China and Shi Huangdi's subsequent book burning in the second century BC, six major works have survived. During the much later Song dynasty, these six works were combined with a Tang text into a collection called the "Seven Military Classics". As a central part of that compilation, "The Art of War" formed the foundations of orthodox military theory in early modern China. Illustrating this point, the book was required reading to pass the tests for imperial appointment to military positions. Sun Tzu's The "Art of War"
Christianity in the 6th century that before a battle against one of the kings of the Alamanni, and had thus attributed his victory to Jesus. Such utilitarian thoughts were the basis of most conversions of rulers during this period. The Christianization of the Franks lay the foundation for the further Christianization of the Germanic peoples. Cosmas Indicopleustes, navigator and geographer of the 6th century, wrote about Christians, bishops, monks, and martyrs in Yemen and among the Himyarites. In the 5th century a merchant from Yemen was converted in Hira, in the northeast, and upon his return led many to Christ. It is unclear when Christianity