11/3/21. This Land Was Theirs examines the traditional and contemporary lifeways of twelve North American Indian tribes. Ranging from the Netsilik hunters who straddle the Arctic Circle to the Natchez farmers of the lower Mississippi River area, the tribes represent each culture area and various levels of socioeconomic complexity among Native Americans. Each chapter focuses on a specific group and culture area, providing students with a detailed portrait of the geographical and cultural adaptations of that region.