If the suggestion above thrown out is correct, that the hymn is older than the days of Hammurabi, Ramman too would be older than his first mention in historical texts.

However, it is worthy of note that in this hymn each of the other gods mentioned receives a line for himself, and that Ramman is the only one who is tacked on to another deity.

It is not strange that in making copies of older texts, especially those of a religious character, the scribes should have introduced certain modifications.

At all events, the god does not acquire any degree of prominence until the days of Hammurabi; so that whatever his age and origin, he belongs in a peculiar sense to the pantheon of Hammurabi rather than to that of the old Babylonian period.

The successor of Hammurabi, Samsu-iluna, dedicates a fort, known as Dur-padda, to Ramman whom he addresses as his 'helper', along with several other gods.
Despite this fact, his worship does not appear to have been very firmly established in Babylonia, for Agumkakrimi, who follows upon Samsu-iluna, does not make mention of Ramman.