LOL... But really, do you see something I might have missed ? If he is doing what aboriginies (sp?) folks did, I think they did have home-made backpacks in those days.
otzi ( the iceman ), one of the oldest mummies ever discovered - he lived about 5,000 years ago, continues to be studied. and more discoveries are made with each advance in science.
he had a backpack, as well as many other items that were his survival items. go here:
otzi's equipmentsurprisingly, some things haven't changed that much in 5,000 years.