As elsewhere in the world, there has been language contact among many of the Indigenous languages of North America. These languages show varying degrees of influence from other languages; i.e., there may be borrowing between languages not only of vocabulary items but also of phonological, grammat...
. A single site may have art that dates to several different centuries. Rock art may have played a role inprehistoric religion, possibly in connection with ancientmythsor the activities ofshamans. Important sites are located in Europe, Asia, Africa, Australia, and North and South America....