16thcentury 500-1500 africa alaska ancient antiquities art art026000art015080soc036000art006000 artpatronage beringstraitregion bonecarving catalogs champlevé christianartandsymbolism collections conservationandrestoration death deathinart dying egypt eskimo excavations(archaeology) exhibitions general gothic history installation ivorycarving medieval motives northeastern portugal religiouslifeandcustoms renaissance ritesandceremonies russia(federation) sculpture siberia socialscience textilefabrics themes tusks west