Human beings have been creative beings for a really long time--long enough and consistently enough that it appears to be a totally natural impulse. To put the story in perspective, consider this fact: The earliest evidence of recognizable human art is forty thousand years old. The earliest evidence of human agriculture, by contrast, is only ten thousand years old. Which means that somewhere in our collective evolutionary story, we decided it was way more important to make attractive, superfluous items than it was to learn how to regularly feed ourselves.