After excavating a site, one of the first questions to answer relates to time. Much of the meaning that can be inferred from a site comes from the context—when the site was used and when the various a...After excavating a site, one of the first questions to answer relates to time. Much of the meaning that can be inferred from a site comes from the context—when the site was used and when the various artifacts collected were made, used, and left behind. It is a straightforward question to ask, but one that has long been difficult to answer.