There are things dated far older of unknown origin and purpose like the 2.8 billion year old Spherical Objects found in pyrophyllite in Western Transvaal, Africa; or the 600,000,000 million year old (U.S. 1968) Fossil sandal and child foot prints found in trilobite formations; 325,600,000 million year old (U.S. 1912) Iron Pot found in coal.
thanks I will look into those