China and India were largest in population and this had consequences not just militarily but even more important epidemiologically. read more
The “Dark Ages” of China strated at 304 AD and ended at 581 AD, lasting for almost 300 years. So no, China was not responsible for the Dark Ages of Europe, because China was suffering their Dark Ages, too. read more
During the 'Dark Ages' of Western Europe there were technological advances, advances in education, and advances in knowledge, as well as adoption of technologies from other regions, of which the refinement propelled Western Europe into a dominant force with the advent of the Renaissance. read more