Ryukyuans

The Ryukyuans are an East Asian ethnic group native to the Ryukyu Islands.

This island chain stretches from Kyushu in Japan toward Taiwan. Most Ryukyuans live in the Okinawa or Kagoshima prefectures today. They speak Ryukyuan languages, which are part of the Japonic language family. This family also includes the Japanese language and its various dialects. While the Japanese government views them as a subgroup of the Japanese people, they are the largest ethnolinguistic minority in Japan. More than 1.4 million Ryukyuans live in the Okinawa Prefecture alone.

Ryukyuan culture is distinct and includes several unique characteristics. Their indigenous religion and specific cuisine set them apart from mainland neighbors. For example, rice was not a staple until the 12th century. Some social structures also show matriarchal elements, where women hold significant roles. The people often use specific names for themselves to mark this identity. They may call themselves Uchinaanchu or Shimanchu. The term "Okinawa" is a Japanese version of the indigenous name "Uchinaa."

History shows that the Ryukyuans lived in isolation for many centuries. In the 14th century, three separate political groups merged together. This merger created the Ryukyu Kingdom, which ruled from 1429 to 1872. The kingdom was famous for maritime trade and tributary relations. They began these trade connections with Ming China in 1372. In 1609, the Satsuma Domain from Kyushu invaded the kingdom. The kingdom then held a unique dual status. It acted as a subordinate to both China and Japan. This was possible because Tokugawa Japan could not trade directly with China.

The political status of the islands changed during the Meiji era. The Empire of Japan began the process of political annexation. In 1872, the kingdom became the Ryukyu Domain. By 1879, the domain was abolished and turned into Okinawa Prefecture.

The last king, Shō Tai, was forcibly exiled to Tokyo. During this time, the Meiji government tried to assimilate Ryukyuans. They suppressed local traditions, culture, and the Ryukyuan language. China eventually renounced its claims to the islands in 1895.

Following World War II, the islands experienced a new period of change. The United States occupied the Ryukyu Islands from 1945 to 1950. This occupation continued again from 1950 until 1972. Since the end of World War II, many Ryukyuans have felt resentment. This is often linked to the large number of U.S. military facilities in Okinawa. In 2006, a United Nations rapporteur noted levels of discrimination and xenophobia. Much of this discrimination is tied to local opposition to these military installations.

Scientists use genetic studies to understand Ryukyuan origins. Research shows they are a distinct genome-wide cluster within the Japanese people. They share many alleles with southern Jōmon hunter-gatherers. The Jōmon were prehistoric people who lived long ago. Estimates of Jōmon ancestry in Ryukyuans range from 26.1% to 36%. This differs from the Yamato Japanese, who have more mainland Asian ancestry. This follows the dual-structure model proposed by Hanihara in 1991.

Detailed DNA analysis helps trace ancient human migrations. Researchers look at mitochondrial DNA and Y chromosome markers. For example, the M7a haplogroup is often linked to the Jōmon genotype. This may have come from Southeast Asia during the Last Glacial Maximum. Studies of skeletal remains from the Neolithic Shell midden period show genetic continuity. Ryukyuans also show high genetic affinity with the Ainu people. Both groups share higher levels of Jōmon ancestry than the average mainland Japanese.

Physical studies provide even more clues about the past. Anthropological studies look at dental diversity and skull shapes. Some studies show that Ryukyuans were historically shorter than mainland Japanese. They often had broader faces and different nasal structures. These traits reflect long-term isolation and genetic drift. Some researchers believe these features are well-preserved phenotypes from the Jōmon era. This helps scientists understand how different populations moved and settled across East Asia.