The Story of the World, our elementary and intermediate history curriculum, does not promote any particular religion. Religious beliefs and stories are discussed as they come up in the story of world history, usually like this: “Here is what the _____ people believed about ______,” or “Here is a story that the _____ told about their gods.”
The Story of the World includes information about many world religions, to show the beliefs of different peoples. The Story of the World, Vol.1: The Ancients, begins with the first nomads.
You can read more, here: "A Neutral Education".