Chimor (also Kingdom of Chimor or Chimú Empire) was the political grouping of the Chimú culture. The culture arose about 900 CE, succeeding the Moche culture, and was later conquered by the Inca emperor Topa Inca Yupanqui around 1470, fifty years before the arrival of the Spanish in the region. Chimor () was the largest kingdom in the Late Intermediate Period, encompassing 1,000 kilometres (620 mi) of coastline. The Chimor dynasty begins with two origin myths about the Naymlap dynasty that were orally passed down and conserved. The first legend begins with the arrival of Taycanamo in the Moche Valley after he crossed an unknown sea on a balsa raft. From there his descendants would conquer surrounding areas starting with his son Guacricaur. Guacricaur integrated Chimú reign over the lower valley and Ñançenpinco, Taycanamo's grandson would expand the kingdom by conquering the upper valley. Ñançenpinco began to further expansion both north and south of the Moche Valleys. The second myth varies substantially from the first. This myth states that a fleet of balsas arrived on the coast of Lambayeque. The fleets carried Naymlap and his wife along with 40 officials who were used to initiate a court located at Chot. It is believed that 12 rulers succeeded and culminated with Fempellec. Fempellec's reign was brought to its end because of 30 days of rain and flooding in his region. Lambayeque was eventually under the control of the Chimor. The first valleys seem to have joined forces willingly, but the Sican culture was acquired through conquest. They also were significantly influenced by the pre-Incan Cajamarca and Wari cultures. According to legend, its capital of Chan Chan was founded by Taycanamo, who arrived in the area by sea. Chimor was the last kingdom that had any chance of stopping the Inca Empire. But the Inca conquest began in the 1470s by Topa Inca Yupanqui, defeating the emperor and descendant of Tacaynamo, Minchancaman, and was nearly complete when Huayna Capac assumed the throne in 1493. The Chimú resided on a strip of desert on the northern coast of Peru. The rivers in the region carved a series of fertile valley plains, which were very flat and well-suited to irrigation. Agriculture and fishing were both very important to the Chimú economy. Worshipping the moon, the Chimú, unlike the Inca, considered it more powerful than the sun. Offerings played an important role in religious rites.