Enormous rock engravings may be prehistoric territorial markers, suggest archaeologists

Archaeologists have mapped 14 sites featuring the world’s largest monumental engravings, proposing that they were created to signal the territorial boundaries of the prehistoric inhabitants. Archaeologists have mapped 14 sites featuring the world’s largest monumental engravings, proposing that they were created to signal the territorial boundaries of the prehistoric inhabitants. Archaeology Phys.org – latest science and technology news stories