Religions have been spreading an fluctuating for ages, ESSPESIALLY during the medieval ages. During that time, China was very highly regarded for their outstanding ability and achievements. So much so that many people sought their ways in hope to being like them.
I’m pretty sure it’s arabic coins and weights became the standard for business as The arab trade under the Islamic empire was quite large and reached many places such as Africa or Europe and the arabic world was the most advance at the time, such as they invented algebra and a lot of other inventions at the time.
