Mesopotamian religion refers to the religious beliefs and practices of the civilizations of ancient Mesopotamia, particularly Sumer, Akkad, Assyria and Babylonia between circa 3500 BC and 400 AD, after which they largely gave way to Syriac Christianity. A few traces remained among Assyrian communities in isolated pockets of what had been Assyria until the 10th century AD.

Source: Ancient Mesopotamian religion | Gikipedia | Mesopotamian religion refers to the religious beliefs and practices of the civilizations of ancient Mesopotamia, particularly Sumer, Akkad, Assyria and Babylonia between circa 3500 BC and 400 AD, after which they largely gave way to Syriac Christianity