Is this forum the correct place for this question? I recently saw a program on History Channel (or Science Channel - I'm not sure which one) where a man in England unearthed some pieces of pottery in his yard while building an addition to his home. I came in on the tail end of the program, so I missed HOW they determined the date of these artifacts. I did come to understand that they were Roman in origin, but I was wondering specifically how they dated these pottery items. Can someone help? Thanks!