Muslim cities were abundant with knowledge, which they spread throughout the world. Scholars of all religions studied in Muslim cities, which were some of the first cities to produce books. In Document 2, a Muslim historian describes Cordoba, stating: "Unto it flocked seekers of science and poetry, for it was a resort of the noble and a mine of the learned." It was a center of knowledge-seekers, perfect for any type of learned person. As the scholars came and went, they spread their knowledge with them, eventually spreading it all over the world. In addition to having much knowledge, Muslim cities also accumulated much wealth. Document 1 describes Damascus as "the paradise of the east", discussing its luxurious features. Document 5 discusses the highly-priced silks that were sold in Muslim cities. I request an additional document, in which a non-Muslim describes Muslim cities, to better understand an outsider's point of view.
Trade was a large part of both Muslim and Arabic culture. It was how ideas and innovations spread all over the world; simply through word of mouth. Document 3 mentions Cairo's numerous shops in the 11th century, of which the Sultan owned. Cairo was a rich city, of which was popular for trade. Document 5 describes trade in Tabriz, and the expensive materials that were traded. Document 8 is a map that shows numerous Muslim trade routes across North Africa, Southern Europe, and several parts of Asia. Muslim traded in many parts of the