Islam was brought to Mali and other Western African civilizations during the 9th century by Muslim Berber
it was the only thing keeping the sixth army in tact
In the Oedipus the King, in some cases hilariously inhumane or whimsical, now and then keen, now and again sensational, the Chorus responds to the occasion in front of an audience. The Chorus' responses can be lessons in how the gathering of people ought to decipher what it is seeing, or how it ought not to translate what it is seeing.
When merchants traveled between towns selling goods, they would have items from different places and cultures. The buyers of these merchants would be fascinated with the new items they had never seen before of different cultures, and so they would buy those items and spread them around until everybody knew about and became interested in other cultures. The cycle continued, causing more and more people to appreciate other cultures.