✔ 最佳答案
It's physical history.
Excavated objects like coins, weapons, brick walls, and pottery can all be appreciated for their aesthetic artistry. But the main purpose of archeology is to analyze these dug up artifacts to help reconstruct the history of the society that made them.
Finding a nice iron arrowhead can look cool in a collection, but for the archeologist it's the fact that it's made of iron and of a specific design that will tell them when and from how developed a society the arrowhead came. Once that information is put into historical context it can help verify that a certain battle did occur on the location where the arrowhead was found.