Dai: sounds as though you've reached the mellow stage already. Oh happy man at that time of the morning.

AliUK: Archeology gets a bit wavy on theology and pantheons, but can detect changes such as burying as opposed to burning, individual graves as opposed to communal mounds, grave goods or plain burials. By tracing such you can see that rituals do change, much as changes in agricultural practice can be seen, and these can be credited to invasion, culture spreading, or just plain change. According to taste, current fashion, and individual interpretation.

Finding a skeleton with a Roman ballista bolt in the spine does rather confirm the written evidence that the Roman take-over was a conquest: finding a skull caved in by a flint axe could simply mean a domestic altercation.