From Newfoundland to Baghdad, the reach of the Vikings during the 8th thru 11th centuries.

The vast cultural differences between the Vikings and the Arabs in the 10th century is explored in the movie, The 13th Warrior. This was the Golden Age of Islam, when Islam embraced science and medicine and briefly took the reins of the classical world:

https://www.livescience.com/archaeology/vikings/whats-the-farthest-place-the-vikings-reached