Walking through the Millennium of Medieval Aso Genealogy of the Manor and Fire People - 2025 Kanshitsu

Walking through the Millennium of Medieval Aso Genealogy of the Manor and Fire People - 2025 Kanshitsu

In the medieval Aso, politics and religious beliefs were intricately intertwined in an ethereal landscape of grasslands and volcanic smoke. A vast collection of historical documents, collectively known as the Aso Documents, has been preserved here, vividly conveying the actual state of manorial rule, the layout of villages, and even the dynamics of the local region. The reason why such a systematic collection of medieval documents has survived is that the Aso Shrine and other shrines covered a wide area, and the Aso Grand Shrine family was the nexus between the state power and the local community. Although located in the midst of a volcano, Aso was a pivotal point for both the spiritual world and the political order.

The manorial system of the time consisted of three layers of land rights (kun'衙, shrines, and samurai), with the power of each layer balanced against the power of the other. In Aso, the Aso Shrine's domain was widely distributed throughout Higo, and the Grand Shrine family was responsible for both Shinto rituals and administration. After the establishment of the Kamakura shogunate, the Aso shrine domain also came into the hands of the warriors as a strategic point in Kyushu, and there are records of the Hojo clan's involvement as a depository. Most of the Aso documents are concentrated in this period, and the practical documents, such as the collection of annual tribute, disputes over land boundaries, and the allocation of expenses for Shinto rituals, are indispensable materials for the reconstruction of the village structure and landscape in the medieval period.

In the period of the Northern and Southern Dynasties, the position of Aso was further shaken. The entire Kyushu region was embroiled in a conflict between the Southern Court and the Shogunate, and the Aso clan often took the side of the Southern Court. Many letters of military loyalty, letters of exemption from miscellaneous duties, and reports of damage from warfare are preserved in Aso documents, showing that this area was not merely a mountainous region, but also a stage for the comings and goings of political forces and military activities. The company's territory was often ravaged by warfare, villages were forced to move, and even the process of transformation of the landscape itself can be read.

On the other hand, disaster and ritual always overlapped in Aso, and faith functioned as an everyday technique. Noyaki (burning of fields) revitalized grasslands and served as the basis for pastoralism and hunting, and rituals such as the fire-waving ritual served to quell the power of fire and maintain communal order. Today, from the perspective of environmental historiography, this linkage between fire and landscape maintenance is attracting attention. Recent hydrological and ecological studies have confirmed that wildland fire not only protected the ecosystem, but also contributed to the recharging of water resources and the maintenance of agricultural conditions. The coexistence of cultivation and grazing in this volcanic area is due to the inheritance of these techniques.

The Aso Documents, which are available on the web, have been described as a pillar of Kyushu's medieval history in the National Archives of Japan database and the Kumamoto Prefectural Library's commentary, and are highly regarded as basic historical materials for the study of the manorial system. In the concept of cultural landscape organized by the Agency for Cultural Affairs, Aso is regarded as one of the areas where the interaction between nature and mankind most typically appears, and wild burning and rituals are treated as important components of this interaction. In other words, understanding Aso means not only looking at the threat of the volcano, but also deciphering the historical system that integrates manorial rule, religious beliefs, and landscape management.

Aso in the Middle Ages was a huge intersection of volcano and grassland, company domain and people, disaster and prayer. The traces of documents, place names, and rituals produced by this intersection provide today's researchers with an index for restoring the medieval landscape, and at the same time, they are a rare testimony to the co-evolution of man and nature. Behind the serenity of the Aso grasslands, these millennia of domination and prayer are still thinly veiled.