History:
The history depends on which version you prefer to believe. If you go by Okinawan folk tales, then its at least 17,000 years old. The Tenson Dynasty was said to last thousands of years according to the Chuzan annals.More historical ones, you can refer to this (credits, Okinawa Shinryu Karate):
Okinawan History: A Chronology
PRIMEVAL Old Stone Age
Shell Mound Age
605 The Chinese Emperor Yo (Sui Dynasty) sends Shu-Kan to the Ryukyus
608 From about this time, the "Southern Island" people pay tribute to the Japanese Imperial Court.
ANCIENT
1187 Shunten becomes overlord of Central Okinawa
1260 Eiso beomes new overlord
1296 A
Mongol invasion army attacks Okinawa and is repulsed
1317 Miyako islanders drift ashore in China while enroute to trade in Souteast Asia
1326 At about this time, the Three Kingdoms in Okinawa (Hokuzan, Chuzan, and Nanzan) begin their rivalry
1349 Satto becomes ruler of Chuzan and increases its influence
1350 Nanzan (the southern kingdom) sends tribute to the Ming
1383 Hokuzan (the northern kingdom) sends tribute to the Ming
1392 A group of Chinese, now known as the "Thirty-six Families" are naturalized in Chuzan.
1404 A Siamese shop comes to Okinawa to trade
1416 The Chuzan King, Sho Hashi, captures Nakijin Castle and brings about the downfall of Hokuzan.
1425 Sho Hashi sends trading vessles to Siam
1428 Sho Hashi sends trading vessels to Palembang (Sumatra)
1429 Sho Hashi conquers Nanzan and is the first to succeed in uniting all Okinawa. (Beginning of the First Sho Dynasty.)
1430 Trading ships are sent to Java
1431 Sho Hashi establishes formal diplomatic relations with Korea and initiates trade
1451 Sho Kimpuku builds the Chokotei (a road around Naha inlet)
1458 The Gosamayu Awamari rebellion takes place. A large bell (the Bankoku Shinryo), on which there is an inscription concerning the prosperity of the Ryukyus, is cast.
1459 Kanemaru Uchima is appointed Foreign Trade Minister.
1463 Trading ships are sent to Malacca
1466 After an audience with the
Shogun of the
Muromachi Shogunate (Japan), a Ryukyuan friendship mission sets off gunpowder outside the gates in celebration and astonishes the people of
Kyoto.
1470 Kanemaru Uchima overthrows the First Sho Dynasty, begins a new (the second) Sho Dynasty, and assumes the name of Sho En.
1492 The Enkakuji Temple is built
1498 Trade begins with Patani (on east coast of Malaysa)
1500 Sho Shin conquers Miyako Island, he also puts down the rebellion led by Oyake Akahachi of Yaeyama Island and assumes rule over the castles of Saki Shima (the "Southern Island" as Miyako and Yaeyama were then known.)
1511 Portugal causes the downfall of Malacca and strengthens it to be used as a base for the invasion of Asia.
1532 The first volume of the Omoro Soshi (a compendium of ancient songs and rituals) is compiled.
1534 The Chinese Ming Emperor sends an envoy, Chin Kan, and party to visit the Ryukyus
1553 Yara Castle is built at Naha Harbor and coastal defenses are prepared
1579 A tablet inscribed "Country and Propriety" is placed on public display at Shuri Castle. (Translator's Note: This tablet had been presented to the King at Shuri by the Chinese Emperor in recognition of the Ryukyuans' strict adherence to the Chinese rules of ritual and etiquette.)
1592 Hideyoshi Toyotomi (the Japanese Shogun) orders the King of the Ryukyus to assist in
the invasion of Korea; the King ignores the order.
1600 The Eastern army wins the great
Battle of Sekigahara (in Japan). Ieyasu Tokugawa establishes his leadership in Japan.
1609 Ichisa Shimazu of
Satsuma sends 3,000 troops and subjugates the Ryukyu Kingdom. (The Shimazu Invasion)
1611 The Satsuma Clan looks into the productive capacity of the Ryukyus; divides the Amami Oshima area (the islands north of Yoron Island) from the Ryukyus: and hands down the Okite Jugo Jo (fifteen ordinances to be obeyed by all in the Ryukyus).
1614 The Satsumas order strict surveillance of all shipping into and out of the Ryukyus.