Final answer:
The Abbasid dynasty ended in 1258 when they were overrun by the Mongols. Their seat, Baghdad, was destroyed in this attack. The Abbasids had been weakened by various internal tensions, which made the Mongol invasion successful. Therefore correct option is A
Step-by-step explanation:
The Abbasid dynasty came to an end in 1258 when it was overrun by the a. Mongols. The Mongols, under Hulagu Khan, attacked and destroyed Baghdad, the seat of the Abbasid Caliphate. Despite the Abbasid's attempts at fostering a time of immense creativity and intellectual achievement, by the time of the Mongol invasion their power had been significantly weakened due to various political, ethnic, and religious tensions within the empire. This historical period marked a significant turning point in the Middle East as it brought an end to the Abbasid reign and initiated a new era under the rule of the Mongols.
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