I have a Roman artifact in my inventory and it says to give it to someone in the camp. I have looked around and I don’t know who would even accept it. What are you meant to do with these things?
You may need to progress further in the game before you can use these. Once you have upgraded your camp level enough, a museum will become available. You will find it north of the main long house near the Roman columns. Once you build this, you will be able to trade them With the guy here.