of China, historical Chinese dynasties that existed during periods of sustained political disunity often claimed exclusive Chinese politico-cultural orthodoxy at the expense of others. During dynastic transitions, it was rare for one dynasty to end abruptly and transition smoothly to a new one, resulting in the existence of more than one entity claiming to be "China". For instance, during the Ming–Qing transition, the Ming dynasty existed alongside the Qing dynasty from 1636 to 1644. The predecessor of the Qing dynasty, the Later Jin dynasty, was established in 1616 and ruled over northeastern China whilst the Ming dynasty ruled over China proper. Following the fall of the Ming dynasty in 1644, remnants of the Ming imperial family, whose regime is known in historiography as the Southern Ming dynasty, continued to rule parts of southern China until 1662. Multiple ephemeral regimes also existed during this period, including the Shun and Xi dynasties on mainland China, and the Ming loyalist Kingdom of Tungning on Taiwan. Republic of Ireland Ireland, then called the Irish Free State, seceded from the United Kingdom under the Anglo-Irish Treaty of 1922. The new state took the view that when a new state comes into being after formerly being part of an older state, its acceptance of treaty relationships established by the older state is a matter for the new state to determine by express declaration, or by conduct in the case of each individual treaty. In practice, however, the Irish regarded the commercial and administrative treaties of the United Kingdom of Great Britain and Ireland previously applying to the territory of the Irish Free State as remaining in force. Israel Israel took the view that, by virtue of its declaration of independence in 1948, a new international personality from Mandatory Palestine was created, and that it started with a clean slate, and was bound only by such of the former international obligations affecting the territory as Israel might accept. Kampuchea/Cambodia When Democratic Kampuchea led by Pol Pot was militarily displaced by the Vietnamese-backed People's Republic of Kampuchea, the country's United Nations seat was held by Democratic Kampuchea for many years. It is now held by the Kingdom of Cambodia. Korea In 1919, when the Provisional Government of the Republic of Korea was formed it claimed continuity directly from their pre-1910 status. In 1948 when the modern Republic of Korea was formed it claimed that it was identical with