I recently had a conversation with an archeologist. She said that she regularly gets calls from the local government because they're out digging up some ground

I recently had a conversation with an archeologist. She said that she regularly gets calls from the local government because they're out digging up some ground and have found items that are around 50 years old. Apparently that's the legal cutoff, and they're required to get it checked out by an archeologist if they think it's that age or older. So yeah, history is definitely in that range.