io9 has an article about how
Neanderthals might have believed in the spiritual world before Homo sapiens did. Well. Seeing as how they existed before Homo sapiens, that calls for a resounding "duh."
Anywhere there are archaological finds, there has been evidence of the usage of "sympathetic magic" and other "spiritual" ideas (burying their dead with flowers or items, for example).
In other news, my mother was born before I was.