Starting about 160,000 years ago, (Wikipedia article about human evolution), and for a long chunk of the natural history of homo sapiens, we just went about our daily lives without leaving any evidence of creative expression. Then, about 40,000 years ago, (Wikipedia article about art history), almost over night, paleologically speaking, humans started painting on cave walls, carving sculptures out of bone, wood and stone essentially creating what we consider to be art. For some spiritually minded people, this is the advent of the soul and evidence of a higher spiritual being. It could be said that creativity is what divides divides us from the lesser creatures; creatures such as garden spiders, conch snails and NASCAR fans.