There's always room for discussion, but perhaps these topics found through the search function will answer your inquiry.

• How accurate is the popular US perception that Native Americans lost their land "because they didn't understand the concept of ownership?"

• Why do many Native-American cultures not have any concept of land ownership?

• How did Native Americans view land ownership?

• What legal ways (if any) were Europeans using to claim rights to new found lands? Did Native Americans or other groups have ideas about land ownership already?

• How did Native Americans (or other tribes for that matter) avoid 'Tragedy of the Commons' problems?