Barcode purchase date?

Barcode purchase date?
Can you tell from a barcode when something was purchased? Is there some website where you can enter a barcode and tell when it was purchased?

Best answer:

A barcode is simply an electronic reference number for the item used either for easy reordering of the item or for retailers to put the code on their system with a price of their choosing (so the checkout can scan it without needing to punch buttons as on old cash registers)