1) Japanese era 
==Change of era== ==Events of Eiso era== ...[Ryukyu] Eiso was a member of the Tenson family; and he is also known as the first of the Eiso Lineage of Ryukyuan monarchs. He served as Regent from 1235 to 1260, and afterwards as king, succeeding Gihon and reigning until his death in 1299. Eiso`s reign is generally seen as one of great growth for the fledgling Okinawan principality. Eiso...