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.
Risampuné kaon Maharaja Romawi Barat, kawruhan indik kosep Yunani indik jagaté sayan nyelékang ring Eropa Barat selami pangawitin abad (400 ngantos 1000 M) Abad Pertengahan, sakéwanten setata kawigunayang ring Muslim selami Zaman Keemasan Islam.