information:extraction, structural:summarization
Weaving

Navajos came to the southwest with their own weaving traditions; however, they learned to weave cotton on vertical looms from the Pueblo peoples. The first Spaniards to visit the region wrote about seeing Navajo blankets. By the 18th century, the Navajos had begun to import Bayeta red yarn to supplement local black, gray, and white wool, as well as wool dyed with indigo. Using an upright loom, the Navajos made extremely fine utilitarian blankets that were collected by Ute and Plains Indians. These Chief's Blankets, so called because only chiefs or very wealthy individuals could afford them, were characterized by horizontal stripes and minimal patterning in red. First Phase Chief's Blankets have only horizontal stripes, Second Phase feature red rectangular designs, and Third Phase features red diamonds and partial diamond patterns.

The completion of the railroads dramatically changed Navajo weaving. Cheap blankets were imported, so Navajo weavers shifted their focus to weaving rugs for an increasingly non-Native audience. Rail service also brought in Germantown wool from Philadelphia, commercially dyed wool which greatly expanded the weavers' color palettes.

Some early European-American settlers moved in and set up trading posts, often buying Navajo rugs by the pound and selling them back east by the bale. The traders encouraged the locals to weave blankets and rugs into distinct styles. These included "Two Gray Hills" (predominantly black and white, with traditional patterns); Teec Nos Pos (colorful, with very extensive patterns); "Ganado" (founded by Don Lorenzo Hubbell), red-dominated patterns with black and white; "Crystal" (founded by J. B. Moore); oriental and Persian styles (almost always with natural dyes); "Wide Ruins", "Chinlee", banded geometric patterns; "Klagetoh", diamond-type patterns; "Red Mesa" and bold diamond patterns. Many of these patterns exhibit a fourfold symmetry, which is thought to embody traditional ideas about harmony or hózhǫ́.