The Islamic Age is the Chinese equivalent of the Mongolian Age. Nomadic Herdsmen go and conquer the hard won, worked and built land of their civilized neighbors and then claim all of the people there are Muslim and any further advancements they make as Qur'an inspired "Islamic" Age.The Renaissance is the European equivalent of the Islamic Age. Except that Islam brought the renaissance to the Middle East and Europe had to shake out of religion to get there. But still, they never did learn the lesson well, as the colonial age, two world wars and the holocaust amply demonstrate
It should be noted that after the Mongols conquered China, killing an estimated 80 million people (the Chinese had just had a census) that China then entered what is referred to by most people as the Chinese Golden Age (this being named after the place where the people lived that made the Golden Age possible). A few people probably refer to this period as the Shaman Age and then credit Shamnism for kicking off the Chinese Golden Age.
It should also be noted the Arab nomades only handed out sweets and everyone dropped their religion, decided they were "Arabs" and took up the advanced language of their conquers because the sweets were oh so yummy.