Oshima

The Historical Roots of Oshima

Oshima (often called Izu-Oshima) is the largest of the Izu Islands and is administratively part of Tokyo. The history of this place is inextricably linked to volcanic activity and maritime isolation, which shaped a unique way of life long before the emergence of the modern administrative unit.

Foundation and First Mentions

Archaeological evidence confirms that humans inhabited the island as far back as the Jomon period (several thousand years ago). In Japanese historical chronicles, Oshima is first mentioned as a sacred land and, later, as a place of exile. Due to its distance from the capital but relative proximity to the Honshu coast, high-ranking exiles were sent here. The most famous was the legendary archer and samurai Minamoto-no Tametomo in the 12th century, who, according to legend, effectively became the island's ruler.

Key Factors of Formation

• Geography and Nature: Life in the settlement has always depended on Mount Mihara — the active volcano at the center of the island. Locals revered it as a deity, and the volcanic soil contributed to lush vegetation.
• Maritime Navigation: Its location at the entrance to Edo Bay (Tokyo Bay) made Oshima an important point for sailors and merchants connecting the islands with the mainland.
• Administrative Status: During the Edo period, the island was under the direct management of the shogunate, which provided a degree of stability and control from the central government.

Early Cultural and Economic Features

Early Oshima's economy was based on unique local industries. Residents were famous for producing camellia oil (tsubaki), which was highly valued in Edo, as well as salt production and fishing. A cultural hallmark of the island was the image of the Anko — women in traditional indigo costumes who performed heavy labor and carried loads on their heads, reflecting the vital role women played in the local economy.

Major Milestones in Oshima's History

• 1156 — The famous archer and samurai Minamoto-no Tametomo is exiled to the island, becoming the hero of many local legends.
• 1603 — With the beginning of the Edo period, the island comes under the direct control of the shogunate, becoming an important point on maritime routes.
• 1878 — Oshima is officially included within the administrative boundaries of Tokyo Prefecture.
• 1906 — The first underwater telegraph cable is laid, ensuring reliable communication with Honshu Island.
• 1933 — Regular steamship service to Tokyo opens, marking the beginning of mass tourism.
• 1936 — The island's territory becomes part of the Fuji-Hakone-Izu National Park.
• 1952 — Oshima Airport is commissioned, providing fast air travel to the capital.
• 1955 — The modern administrative town of Oshima (Oshima-machi) is formed through the merger of six historical villages.
• 1986 — A major eruption of Mount Mihara occurs, notable for the organized and successful evacuation of the island's entire population.
• 2010 — Oshima is granted official Japanese Geopark status, confirming the uniqueness of its geological landscape.
• 2016 — The renovated Izu-Oshima Volcano Museum opens, becoming an important educational and tourist center.

Key Development Stages and Transformations

Oshima's transformation from an isolated volcanic island into a modern administrative center and a popular Tokyo resort has gone through several fundamental stages. Below are the main milestones that defined the current economic and urban landscape of the town:

• Administrative Consolidation (1955): The merger of six scattered historical villages (including Motomachi and Okada) into a single municipality, Oshima Town. This event allowed for a centralized budget, unified living standards, and the launch of large-scale utility infrastructure projects across the island.
• Infrastructural Breakthrough and Accessibility: The opening of the airport (1952) and the subsequent introduction of high-speed hydrofoils (Jetfoils) integrated the island into the Tokyo economic zone. Reduced travel times made mass weekend tourism possible, reorienting the local economy from fishing to the service sector.
• Cultural Branding through the Camellia Festival: The establishment of the annual festival in 1956 was a crucial economic decision. It turned a local agricultural feature (camellia groves) into a national tourism brand, ensuring a steady flow of capital during the winter "low" season.
• Safety Modernization (Post-1986): The eruption of Mount Mihara and the subsequent total evacuation of residents became a turning point in urban planning. The town's reconstruction focused on safety: modern protective structures (sabo dams) were built, evacuation roads were widened, and an advanced volcanic activity monitoring system was implemented.
• Transition to an Eco-Economy (2010): Obtaining Japanese Geopark status marked a paradigm shift in development. The town moved its focus from mass entertainment tourism to sustainable ecotourism and educational programs, requiring the creation of new museum spaces and the protection of geological monuments.

Architectural Character and Urban Planning

The architecture of Oshima differs significantly from mainland Tokyo. Here, you won't find skyscrapers or classic European styles. The island's appearance is dictated by harsh natural conditions: the need for protection against strong sea winds and proximity to the active Mount Mihara volcano. Urban planning developed as an art of survival and adaptation, evolving from traditional fishing settlements into a modern, earthquake-resistant town.

Eras and Styles: From Tradition to Functionalism

The island's buildings are a blend of traditional Japanese methods and modern engineering approaches focused on safety.

• Traditional Vernacular Architecture (Edo — Meiji Era):

  Historically, residential houses were built of wood with low roofs to withstand typhoons. A characteristic feature of old Oshima is its stone walls and camellia hedges planted around houses to protect against wind and salt spray. This "green shield" is a unique element of local landscape design.

• Showa Era Retro Style (1920s — 1980s):

  The heyday of fishing and the dawn of tourism left a legacy in the Habu Port area. Here, you can find three-story wooden buildings of former inns and ryokans featuring elements of traditional Japanese style mixed with Western influences from the early 20th century. This creates a particularly nostalgic atmosphere.

• Modern Functionalism and Brutalism (since the 1980s):

  Following the 1986 eruption and subsequent reconstruction, the focus shifted to reinforced concrete structures. Administrative buildings, schools, and port terminals are designed in a sleek, utilitarian style. The main priority is seismic resistance and protection from ash. A striking example is the Volcano Museum, whose architecture resembles a bunker seamlessly integrated into the landscape.

Iconic Districts and Sites

Oshima's urban environment is decentralized and concentrated around key ports and historical locations.

• Motomachi: The administrative and commercial center of the island. Modern, dense development prevails here. The area is characterized by the functional architecture of the ferry terminal and the presence of protective structures (sabo dams) against mudflows, which are integrated into the urban environment.
• Habu Port: A historical district in the south of the island, located in the crater of an ancient underwater volcano. This place has preserved the spirit of early 20th-century Japan. Narrow streets and old wooden buildings, such as the former "Minatoya" inn, attract history and literature enthusiasts.
• Shrines and Temples: Religious architecture is represented by Shinto shrines (such as Goshinka), which are distinguished by simple forms and the use of natural materials that harmonize with the forested terrain.

Distinguished Personalities Associated with Oshima

The history of Oshima Island is inextricably linked with the names of legendary warriors, mystics, and artists who either served their exile here or drew inspiration from the rugged beauty of Mount Mihara.

• Minamoto-no Tametomo (1139–1170)
  Role: Samurai, commander, legendary hero

  One of the most famous figures in the island's history. After being defeated in the Hogen Rebellion (1156), he was exiled to Oshima. According to legend, he effectively became the ruler of the island, subduing the locals with his incredible physical strength and skill as an archer. He is considered the first warrior in Japanese history to commit ritual suicide (seppuku) right here, refusing to surrender to imperial troops.

• En-no Ozunu (634–701)
  Role: Ascetic, mystic, founder of Shugendo

  A legendary monk exiled to Oshima by the imperial court in 699 on charges of sorcery. Local legends claim that while in exile, he would fly across the sea to Mount Fuji every night for meditation. He is revered as a patron saint and one of the key figures in the spiritual history of the Izu archipelago.

• Akiko Yosano (1878–1942)
  Role: Poet, social activist

  A famous Japanese poet of the Meiji and Taisho eras who visited the island many times. She was fascinated by Mount Mihara and dedicated many poems (tanka) to it, praising its power and the beauty of the camellias. In honor of her contribution to popularizing the island, a literary monument with her verses engraved on it was erected on Oshima.

• Ujo Noguchi (1882–1945)
  Role: Songwriter, folklorist

  Author of the lyrics to the famous song "Habu Harbor" (Habu no Minato), released in 1928. This work became a nationwide hit and transformed the modest fishing port of Habu in southern Oshima into a popular tourist attraction, forever placing the island on the cultural map of 20th-century Japan.

• Tekkan Yosano (1873–1935)
  Role: Poet, reformer of Japanese poetry

  The husband of Akiko Yosano and a prominent man of letters who also frequently visited the island. His work contributed to the romanticization of Oshima as a place of wild, untamed nature, which attracted Tokyo's creative intelligentsia at the beginning of the last century.