Wrong. Religion as it exists today is a newer invention, compared to how old humanity is. Religions do however build on mythological tales passed down orally by our most ancient sentient ancestors. These tales were the basis for the knowledge and experiences, the history they wanted to pass down to their descendants. As this upcoming "event" (cataclysm) is of a cyclical nature, it is described in myths and tales, sometimes petroglyphs as well. It was later passed down in scriptures which make up the religious teachings we have today.

The Bible, Quran, Hebrew Bible, Norse/Germanic mythologies, Meso-American mythologies, and many others, contain descriptions detailing these natural cosmic disasters.
It surprises me that you fail to take notice of this.