Okay, ancient Egyptian, Babylonian and Mesopotamian traditions, frequently polytheistic, so they believed in multiple deities. Yep, steeped in ritual and mythology,

many of which transferred to a variety of later religions, either through cultural borrowing, religious evolution, or just a desire to convert other people's practitioners.

Lots of focus on cyclical existence, following the seasons, etc. The death and rebirth of Osiris in the Egyptian religion is a great example of

this. This is an example of a tradition that finds its way into many other religions, including Christianity and is an example of both mythological explanation for the seasons and an example of sun worship. We can refer to chapter 5 of the secret teachings of all ages by Manly P. Hall for this. In the section, the myth of the dying god, Hall traces the history of this tradition directly from ancient Babylonian deity, probably going to pronounce this wrong, Tom Moots, who dies at the end of the summer and is resurrected again in the spring. He then discusses the story of Adonis, whose name he's keen to point out literally translates to Lord, and was later borrowed by the Abrahamic face, though this worship predates them. Adonis was born on December 24th. He was killed later by a boar, gourd, or speared in the side. Adonis was an androgynous deity originally and represented the sun, and then he's resurrected again in

March.