[2] According to the Ryukyuan creation myth, the Heavenly Emperor (天帝), who lived in the Heavenly Gusuku (天城), ordered Amamikyu to create the Ryukyu Islands.
Without sexual intercourse, she became pregnant by a male deity, Shinerikyu, and populated the islands.
[4][3] The Chūzan Seikan claimed that the Tenson dynasty had twenty-five kings and ruled for seventeen thousand years.
The last king was assassinated and usurped by a powerful official named Riyū (利勇), and later, Riyū was overthrown by Shunten, the lord of Urasoe, who established the Shunten dynasty in 1187.
[4] The ruler of the Tenson dynasty was only "one line of paramount local chieftains"[5] during the Gusuku period, and its royal authority was based on "divine right".