Han (漢; 221–263), known in historiography as Shu Han (蜀漢; often shortened to Shu; [ʂù xân] ) or Ji Han (季漢) to disambiguate from the preceding Han dynasty, was one of the three major states that competed for supremacy over China in the Three Kingdoms period (220–280). The state was based in the area around present-day Hanzhong, Sichuan, Chongqing, Yunnan, Guizhou, and north Guangxi, an area historically referred to as "Shu" based on the name of the past ancient state of Shu, which also occupied this approximate geographical area. Its core territory also coincided with Liu Bang's Kingdom of Han, the precursor of the Han dynasty.