Sorry, MG. I was thinking in terms of land. I don't actually believe all property is stolen, I was just saying to Faithkills, if all public property is stolen, so is all private property. I don't believe all public property is stolen, nor all private property. Theft is a legal definition, and the law does not define these things as theft. But if theft just means "taken at some point in all of history," then even your computer is the product of a past theft. The land it was manufactured on, the raw materials that went into it's production, the public roads it traveled over. It's a pointless exercise.
As for the difference between public and private domains, I don't define it, the law does. The difference would be who is the legal owner of the property and able to dispose of it, sell it, legally protect it with force in general from violation, etc etc.