Textiles were widely prized within the empire, in part as they were somewhat more portable in the far-flung empire. Ceramics were made in large quantities, and, as with other media, in standardized shapes and patterns. One common shape is the urpu, a distinctive urn shape that came in a wide variety of standard capacities, much as modern storage containers do. In spite of this standardization, many local areas retained some distinctive aspects of their culture in the works they produced; ceramics produced in areas under significant Chimú control prior to the Inca rule still retain characteristics indicative of that style. Following the Spanish conquest, the art of the central Andes was significantly affected by the conflict and diseases brought by the Spanish. Early colonial period art, began to show influences of both Christianity and Inca religious and artistic ideas, and eventually also began to encompass new techniques brought by the conquerors, including oil painting on canvas. Early ceramics in northern South America The earliest evidence of decorated pottery in South America is to be found in two places. A variety of sites in the Santarém region of Brazil contain ceramic sherds dating to a period between 5000 and 3000 BCE. Sites in Colombia, at Monsú and San Jacinto contained pottery finds in different styles, and date as far back as 3500 BCE. This is an area of active research and subject to change. The ceramics were decorated with curvilinear incisions. Another ancient site at Puerto Hormiga in the Bolívar Department of Colombia dating to 3100 BCE contained pottery fragments that included figured animals in a style related to later Barrancoid cultural finds in Colombia and Venezuela. Valdivia, Ecuador also has a site dated to roughly 3100 BCE containing decorated fragments, as well as figurines, many represent nude females. The Valdivian style stretched as far south as northern Peru, and may, according to Lavallée, yet yield older artifacts. By 2000 BCE, pottery was evident in eastern Venezuela. The La Gruta style, often painted in red or white, included incised animal figures in the ceramic, as well as ceramic vessels shaped as animal effigies. The Rancho Peludo style of western Venezuela featured relatively simple textile-type decorations and incisions. Finds in the central Andes dating to 1800 BCE and later appear to be derived from the Valdivian tradition of Ecuador. Early art in eastern South America Relatively little is known about the early