How do relics artifacts tell you something about your history?

Relics can actually be very informative when learning about history. A relic will tell you what a particular culture worshiped and to what extent. For example. finding something like a bone from a saint as a relic tells you that they were held in incredibly high regard and considered holy. Graven images being held as holy or divine would only be considered a relic if they depict a deity -so this tells us who the deity was.