Foundation and First Mentions
The history of Yoronjima (Yoron Island) goes back to ancient times. It is not a classic city founded by a ruler's decree on a specific date, but a place of ancient settlement that developed naturally. Archaeological finds indicate that people inhabited this coral island as early as prehistoric times, dating back to the shell mound period (analogous to the Jomon period on the main islands of Japan).
In historical chronicles, Yoronjima is mentioned as part of the Ryukyu cultural sphere. During the Gusuku period (12th–15th centuries), organized communities began to form here, governed by local chieftains who built fortifications, the ruins of which can still be found on the island today.
Key Factors of Formation
The formation of Yoronjima as an important settlement was driven by a combination of unique geographical and political conditions:
- Geographical Location: Being the southernmost island of the modern Kagoshima Prefecture, Yoronjima is located just 23 kilometres from Okinawa. This made the island an important link and transit point between the Ryukyu archipelago and Kyushu.
- Geology: The island is a raised coral reef. The absence of high mountains and rivers dictated special living conditions, requiring ingenuity from the inhabitants in collecting fresh water and farming.
- Political Influence: A crucial stage in history was the island's inclusion in the sphere of influence of the Ryukyu Kingdom, and then, in the early 17th century, its transfer under the control of the Satsuma clan (modern Kagoshima). This dual influence defined the region's unique identity.
Early Cultural and Economic Features
The economy of early Yoronjima was built on resources provided by the sea and land. Due to the coral soil, rice cultivation was difficult, so sweet potatoes and sugarcane became the basis of agriculture. Cane sugar production (kokuto) subsequently became a key economic sector under Satsuma management.
Culturally, the islanders formed distinctive traditions known as "Yunnu" (the name of the island in the local dialect). A unique language developed here, combining elements of the Amami and Okinawa dialects, as well as special rituals of hospitality and ancestor reverence, which were preserved due to the island's relative isolation.