Sanzan period

History of Ryukyu
Periods Palaeolithic pre–10,000 BC Early Kaizuka Period 8,000–300 BC Late Kaizuka Period 300 BC–1100 AD Gusuku period 1187–1314 Tenson dynasty 16616 BC?– 1186 AD? Shunten dynasty 1187?– 1259? Eiso dynasty 1260?– 1349 Sanzan 1314–1429 Hokuzan 1314?–1416 Chūzan 1314?–1429 Nanzan 1314?–1429 Ryukyu Kingdom 1429–1879 First Shō dynasty 1429–1469 Second Shō dynasty 1469–1879 Satsuma Invasion 1609 Ryukyu Domain 1872–1879 Japanese Annexation 1879 Meiji 1879–1912 Taishō 1912–1926 Pre-World War II 1926–1945 Militarism Battle of Okinawa 1945 U. S. administration 1945–1972 Military Government 1945–1950 Civil Administration 1950–1972 Government 1952–1972 Tokara Reversion 1952 Amami Reversion 1953 Koza riot 1970 Okinawa Reversion Agreement 1971 Okinawa Reversion 1972 Okinawa Prefecture 1972–present Kagoshima Prefecture 1953–present
Topics Missions to Imperial China Missions from Imperial China Missions to Joseon Missions from Joseon Missions to Edo Independence movement
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The Sanzan period (三山時代, Sanzan jidai, lit. 'three mountain period') is a period in the history of the Okinawa Islands when three lines of kings, namely Sanhoku (山北, lit. 'north of the mountain (island)'), Chūzan (中山, lit. 'middle mountain (island)') and Sannan (山南, lit. 'south of the mountain (island)'), are said to have co-existed on Okinawa Island. It is said to have started during King Tamagusuku's reign (traditional dates: 1314–1336) and, according to Sai On's edition of the Chūzan Seifu (1725), ended in 1429 when Shō Hashi unified the island. Historical records of the period are fragmentary and mutually conflicting. Some even question the co-existence of the three polities.