Answer:
Mongol Invasion is said to have brought an end to Islam's golden age.
Step-by-step explanation:
The golden age of Islam lasted for five centuries from the 8th century to the 13th century. It ended in the 13th century with the fall of the Abbasid caliphate because of the Mongol invasion and the siege of Baghdad in 1258 A.D under Halgu Khan.
The period is said to have started during the reign of Abbasid caliph Harun-Al Rashid.