1. It spread through trade with other countries. As merchants came into Africa, they not only traded goods, but also cultures. They taught the Africans about the Muslim teachings and many Africans ended up adopting it.
2. It spread through migration. As Africans migrated from one side of the continent to another, they brought with them their religion and shared it with the people who were living in the places they migrated to.
In 139 B.C.E., the Chinese emperor dispatched Zhang Qian to central Asia to seek allies against the Xiongnu. The Xiongnu were a large confederation of Eurasian nomads who dominated the Asian Steppe.
No, it is technically false that <span>Hieroglyphics were the only written language used by Egyptians, although this form of writing was by far the most popular for the Ancient Egyptians. </span>
The imrpoved agricultural techniques, such as the three field system, the climate change, and the horse plows. These effected Western Europe during the middle ages because the three field system produced better crops, the climate opened more land to farming, and the horse plows allowed faster harvesting. This made life a lot easier for farmers.