Ryukyuan missions to Joseon were diplomatic and trade ventures of the Ryūkyū Kingdom which were intermittently sent in the years 1392–1879.
These diplomatic contacts were within the Sinocentric system of bilateral and multinational relationships in East Asia.
The Ryukyuan King Satto established formal relations with the Joseon court.
[3] Shortly after his ascension, the new monarch sent envoys to inform the Ming court at Nanking that a dynastic change had taken place.
[4] Between 1409 and 1477, the Joseon court received 13 diplomatic and trade missions from the Ryūkyū Islands.