Most ancient cultures share the idea of creation out of water. Be it a cosmic ocean, primordial waters or a more abstract idea of fluid, amorphous chaos. But why is that so? How come that so many creation myths that were formed long before any scientific knowledge about the role of water in biology or physics, agree on the central and fundamental role of water. This article by Morgan Smith gives an overview of the many traces of primordial waters and offers some explanation on the prominent role of water in ancient creation myths.