Final answer:
The Ancient Sumerians notably held the belief that dreams had predictive powers and connected individuals with divine entities.
Step-by-step explanation:
The ancient civilization that notably held the belief that dreams had predictive powers and connected individuals with divine entities is the Ancient Sumerians.
In Sumerian culture, dreams were considered a means of communication between humans and the gods. They believed that dreams held important messages and insights into the future. As a result, they placed great significance on interpreting dreams and sought guidance from the gods through their dreams.
This belief in the predictive powers of dreams was not exclusive to the Ancient Sumerians, as other cultures such as the Ancient Egyptians and Ancient Greeks also attributed divine significance to dreams.