After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age.
Darat egadal ən nakal wan romaintan ən egadal ən tafuk, muzyat ən mənhuyan ən greətan ən adunya ekšad ɣor Euroba tan egadal ən tafuk ɣor elan azarnen (400 as 1000 ən azaman nanaɣ) ən Moyen Âge, mašan atwagaz dǎɣ taməte tan inəsləman agud ən awatay noraɣ ən anislam.