Final answer:
The early Nubian culture was centered on the kingdom of Kush. Egypt struggled to maintain control over Nubia and eventually, under Piye, the Twenty-Fifth Dynasty was established by the Nubians, who embraced Egyptian culture.
Step-by-step explanation:
The early culture of Nubia was centered on the kingdom of Kush. Egypt invaded Nubia during the Middle Kingdom under Mentuhotep II and established the city of Napata. Egypt was not able to permanently control Nubia because the region's leaders were able to reassert their independence during Egypt's Third Intermediate Period. Piye invaded Egypt, and his family founded the Twenty-Fifth Dynasty, known also as the Ethiopian dynasty, ruling as Egyptian pharaohs and preserving Egyptian culture and traditions.