Final answer:
Acculturation can be observed in the Mongols under Genghis Khan and their adoption of Islamic culture in the Il-Khanate, where they began intermarrying with their Muslim subjects and becoming less culturally distinct.
Step-by-step explanation:
An example of acculturation can be seen in the Mongols under Genghis Khan and their subsequent adoption of Islamic culture in the Il-Khanate. After the conversion of the Il-Khanate ruler Ghazan to Islam in 1295, the Mongols living in the Il-Khanate started to intermarry with their Muslim subjects, gradually becoming less culturally distinct from them. This transformation marked a significant shift in the cultural identity of the Mongols, as they abandoned their role as military conquerors and integrated into the sedentary societies they had conquered.