Ascetic foundations
Stories preserved in the early-Heian Nihon ryōiki show Kumano being understood as a place of religious discipline. Scholars identify the retired emperor Uda’s visit in 907 as an early documented imperial pilgrimage.
The imperial expansion
Shirakawa first visited in 1090. After his second pilgrimage in 1116, repeated imperial journeys became a prominent feature of the age of retired emperors. Toba, Go-Shirakawa and Go-Toba continued the practice, supporting religious institutions, buildings and accommodation.
Women among the imperial pilgrims
Women also made historical Kumano pilgrimages. Taikenmon-in and Bifukumon-in accompanied the retired emperor Toba and also travelled on separate occasions. The record of Shūmeimon-in’s 1210 party describes rites and flooding along the way. Their journeys depended on guides, lodging and river crossings too.
A broader body of pilgrims
After the Jōkyū conflict of 1221, the great era of imperial journeys diminished. Provincial warriors, local landholders and ordinary people became increasingly important. Guide-host networks continued, while routes diversified. “Ant-like pilgrimage to Kumano” evokes the succession of travellers.
Images carried beyond Kumano
Late-medieval Nachi pilgrimage mandalas combine the waterfall, religious buildings, legends and visiting people. Religious fundraisers, ascetics and nuns known as bikuni are thought to have used such images for explanation and soliciting support. The precise words and settings of these performances remain incompletely known.
Edo roads and remembered pilgrimage
Under Edo-period administration, official roads and distance markers altered the route system. Some older shrines declined; others received protection or became village tutelary shrines. Saigoku pilgrimage also sustained visits to Kumano. Nineteenth-century gazetteers recorded older sites as places of historical interest.
Separation of religious institutions
Meiji policies separating kami worship from Buddhism and banning Shugendō disrupted Kumano’s older religious combinations. Buddhist images and objects were removed from some shrines, and pilgrimage declined into the wartime period. Today’s institutional boundaries took shape through these changes.
Shrine mergers and local protection
Early-twentieth-century shrine mergers threatened some sites along the route. Tanabe’s tourism bureau describes how Tsugizakura-ōji and its cedar trees faced removal under the 1906 merger programme, and how Minakata Kumagusu’s opposition helped save them. Local protection also sustained the religious sites along the road.
Transport and a return to walking
Postwar road and railway development changed access, leaving some mountain paths little used. Walking revived toward the end of the twentieth century. In 2004, associated sacred sites and routes entered the World Heritage list as the Sacred Sites and Pilgrimage Routes in the Kii Mountain Range. Worship and heritage travel now coexist.