Which cultural traits characterized the Northwest Coast culture area between the 16th and 19th centuries?

Between the 16th and 19th centuries, the Northwest Coast culture area was characterized by a unique, highly stratified society supported by an exceptionally rich natural resource base, including salmon, sea mammals, and shellfish. Unlike most nonagricultural societies, these peoples developed hereditary social hierarchies consisting of elites, commoners, and enslaved persons.1

Key cultural traits included:

• Social Organization: Tribes were often organized into corporate "houses"—groups of related individuals who held collective rights to specific resources. Social rank was strictly defined and reflected in nearly every social interaction.1
• The Potlatch: This institutionalized ceremony involved the distribution of property and gifts to validate social status, mark important life events, or compete with rivals.12
• Architecture and Technology: Peoples of the region built large, rectilinear dwellings from timber and planks. They were renowned for their woodworking skills, creating seaworthy watercraft, memorial or totem poles, and intricate carvings.13
• Artistic Expression: Visual arts emphasized symmetry and embellishment through carving and painting, with styles varying by region, such as the massive, conventionalized elements of Haida art or the intensive filler designs of the Tsimshian.3
• Weaving: Highly developed techniques were used to create baskets, mats, and clothing from materials like red cedar bark, spruce roots, and mountain goat wool.3