Good call bruceyg.
We even have ancient man made structures here. The fish traps in the Darling River are dated to be between 20,000 - 40,000 years old and are clearly man made. Is there any structure in the world older?
Good call bruceyg.
We even have ancient man made structures here. The fish traps in the Darling River are dated to be between 20,000 - 40,000 years old and are clearly man made. Is there any structure in the world older?
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