distinctive Navajo weaving tradition. Spanish records show that Navajo people began to herd sheep and weave wool blankets from that time onward. The extent of Pueblo influence on Navajo weaving is uncertain. As Wolfgang Haberland notes, "Prehistoric Puebloan textiles were much more elaborate than historic ones, as can be seen in the few remnants recovered archaeologically and in costumed figures in pre-contact kiva murals." Haberland suggests that the absence of surviving colonial-era Pueblo textile examples make it impossible to do more than conjecture about whether the creative origins of Navajo weaving arose from Navajo culture or were borrowed from the neighboring people. Early records Written records establish the Navajo as fine weavers for at least the last 300 years, beginning with Spanish colonial descriptions of the early 18th century. By 1812, Pedro Piño called the Navajo the best weavers in the province. Few remnants of 18th-century Navajo weaving survive; the most important surviving examples of early Navajo weaving come from Massacre Cave at Canyon de Chelly, Arizona. In 1804, a group of Navajo were shot and killed there, where they were seeking refuge from Spanish soldiers. For a hundred years the cave remained untouched due to Navajo taboos until local trader Sam Day entered it and retrieved the textiles. Day separated the collection and sold it to various museums. The majority of Massacre Cave blankets feature plain stripes, but some exhibit the terraces and diamonds characteristic of later Navajo weaving. Wider commerce Commerce expanded after the Santa Fe Trail opened in 1822, and greater numbers of examples survive. Until 1880, all such textiles were blankets as opposed to rugs. In 1850, these highly prized trade items sold for $50 in gold, a huge sum at that time. Railroad service reached Navajo lands in the early 1880s and resulted in considerable expansion of the market for Navajo woven goods. According to Kathy M'Closkey of the University of Windsor in Ontario, Canada, "wool production more than doubled between 1890 and 1910, yet textile production escalated more than 800%". Purchases of manufactured yarn compensated for the deficit in wool production. Federal government reports affirmed that this weaving, which was performed almost exclusively by women, was the most profitable Navajo industry during that era. Quality declined in some regards as the weavers attempted to keep up with demand. However, today the average price of a rug is about $8,000. Several European-American merchants influenced Navajo