TheVisitor:
Metal may rust, but we have many examples of metal artifacts from thousands of years prior. If a civilization that was a mighty empire, we should have tremendous amounts of metal artifacts still remaining. We should also have stone, bodies, and other evidence.
I am also rather certain that salt water is -worse- than regular water to soak metal in. The Titanic is falling to pieces, for instance.
Metal may rust, but we have many examples of metal artifacts from thousands of years prior. If a civilization that was a mighty empire, we should have tremendous amounts of metal artifacts still remaining. We should also have stone, bodies, and other evidence.
I am also rather certain that salt water is -worse- than regular water to soak metal in. The Titanic is falling to pieces, for instance.