Shrine at Ise: 2,000 Years of History and the 20-Year Rebuilding Cycle

Why Ise Shrine Stands Apart in Japanese History

Japan has over 80,000 Shinto shrines, but only one holds the title Jingu (神宮) without any qualifier — Ise Grand Shrine in Mie Prefecture. This distinction is not honorary. Ise houses the Sacred Mirror (Yata no Kagami), one of the three Imperial Regalia that symbolize the legitimacy of the Japanese Emperor. For over a millennium, this was a site so sacred that commoners were forbidden from visiting.

What makes Ise unique among the world's ancient religious sites is a paradox: the buildings are always new. Every 20 years, the entire shrine complex is demolished and rebuilt from scratch on an adjacent plot of land, in a ceremony called Shikinen Sengu (式年遷宮). The most recent rebuilding was completed in 2013 — the 62nd time this has occurred. The tradition dates back over 1,300 documented years.

This article covers the historical narrative behind Ise — from its mythological founding to the modern Sengu cycle and what it means for visitors today. For an overview of Mie shrine destinations, see our hub guide.

The Founding Story: Amaterasu and the Sacred Mirror

According to Shinto mythology, Ise's founding traces back to the goddess Amaterasu Omikami (天照大御神), the sun goddess and ancestral deity of the Imperial family. The traditional account, recorded in the Nihon Shoki (720 AD), holds that Princess Yamatohime-no-Mikoto wandered the country for 20 years seeking a permanent home for Amaterasu's Sacred Mirror. When she reached the Isuzu River in what is now Ise, Amaterasu declared: "This is where I wish to dwell."

The traditional founding date is placed around 4 BC, though this is a matter of mythology rather than documented history. The first verifiable historical records of the shrine date to the 5th-7th centuries. What is certain is that by the time of Emperor Tenmu (天武天皇, r. 673-686), Ise was already established as Japan's supreme Shinto site.

The shrine is divided into two main precincts. Naiku (内宮, formally Kotaijingu) houses Amaterasu and the Sacred Mirror. Geku (外宮, formally Toyouke-daijingu), established later, is dedicated to Toyouke Omikami, the goddess of agriculture who provides food offerings to Amaterasu. Both are rebuilt during each Sengu cycle.

Shikinen Sengu: Why Rebuild Every 20 Years

The Shikinen Sengu is the defining practice of Ise Shrine — and arguably the most remarkable preservation tradition in the world. According to the Ise Shrine Sengu Museum, Emperor Tenmu formalized the 20-year rebuilding cycle in the 7th century. The first documented Sengu was carried out in 690 AD under Empress Jito.

But why rebuild rather than repair? The tradition serves multiple purposes rooted in Shinto philosophy:

• Renewal and purity: Shinto emphasizes freshness and cleanliness. A newly built shrine is spiritually pure. This contrasts with Western traditions of ancient stone monuments — at Ise, the buildings are always new, but the practice is ancient.
• Skills transfer: The 20-year cycle ensures that master carpenters pass their techniques to the next generation while still active. If the gap were longer — say, 50 years — the skills would die with their holders.
• Spiritual rebirth: The deity is ceremonially transferred from the old building to the new one, symbolizing continuous renewal of the divine bond.

For details on the shinmei-zukuri architectural style used in the rebuilding, see our guide to Ise Jingu architecture.

How the Rebuilding Works

According to the Ise Shrine official site, the Sengu process takes approximately 8 years from start to finish. The shrine complex maintains two identical plots of land side by side — one holds the current buildings while the other sits empty, covered in white gravel. During the Sengu, the new buildings rise on the empty plot using the same ancient methods: hand-hewn Japanese cypress (hinoki), copper fittings, and thatched roofs, assembled without nails.

The final ceremony — Sengu no Gi — takes place at night, when the Sacred Mirror and other divine objects are carried by priests from the old building to the new one. This transfer ceremony is not open to the public.

What Happens to the Old Buildings

After the transfer, the old buildings are carefully dismantled. According to official records, the recycled timber is distributed to shrines across Japan, where it is reused in torii gates and shrine repairs. Some pieces are also given to local communities. The empty plot is then leveled and covered in white gravel, waiting for the next cycle 20 years later.

A Timeline of the Shrine Through Japanese History

Period	Event
~4 BC (traditional)	Mythological founding by Yamatohime-no-Mikoto
5th-7th century	Earliest documented records of the shrine
673-686	Emperor Tenmu formalizes the 20-year Sengu cycle
690	First documented Shikinen Sengu under Empress Jito
1462-1585	Sengu interrupted for 123 years during civil wars
Edo period (1603-1868)	"Okage Mairi" pilgrimage boom — millions visit Ise
1869 (Meiji era)	Shrine opens to commoners; state Shinto designation
1945	Post-war separation of religion and state
2013	62nd Shikinen Sengu completed
2033 (planned)	63rd Shikinen Sengu scheduled

From Imperial Monopoly to Public Pilgrimage

For most of its early history, Ise was restricted to the Imperial family and court-appointed priestesses. Commoners could not visit. This changed gradually during the medieval period, and by the Edo era (1603-1868), Ise had become the most popular pilgrimage destination in Japan.

The phenomenon known as Okage Mairi (おかげ参り) saw periodic waves of mass pilgrimage — sometimes involving millions of people — who walked to Ise from across the country. Roadside inns, guides, and mutual aid societies sprang up along the pilgrimage routes. The commercial district of Okage Yokocho near Naiku preserves this pilgrimage-town atmosphere today.

Wars, Interruptions, and Revival

The 20-year cycle was not unbroken. During the Sengoku period (15th-16th centuries), Japan's civil wars disrupted the Sengu for 123 years — the longest interruption in the shrine's history. Despite this, the tradition was revived and has continued without interruption since 1585.

The Meiji era brought another transformation. The new government designated Ise as the head of state Shinto, reinforcing its connection to the Emperor. After Japan's defeat in 1945, the American occupation separated religion from the state, and Ise became a private religious institution. The Sengu tradition continued throughout, maintained by donations and the shrine's own resources.

The Next Sengu: What to Expect in 2033

According to the Ise Shrine official site, the 63rd Shikinen Sengu is scheduled for 2033. Preparations are already underway — the Sengu process spans approximately 8 years, meaning preliminary timber selection and planning begin around 2025.

The Okihiki Festival and Preparatory Ceremonies

The most visible public event in the Sengu preparation is the Okihiki Festival (お木曳式), typically held about 8 years before the completion of the Sengu. During this ceremony, local residents pull massive logs of hinoki cypress through the streets of Ise to the shrine grounds. The festival draws thousands of participants and spectators — it is one of the rare Sengu-related events open to the general public.

Other preparatory ceremonies include ritual timber harvesting in the mountains, metalwork for sacred fittings, and weaving of sacred textiles. The entire process involves over 30 distinct ceremonies spread across 8 years.

Visiting Ise with Its History in Mind

Understanding the Sengu tradition transforms a visit to Ise. The buildings you see are not ancient ruins — they are, at most, 20 years old. But the white gravel plot beside them, empty and waiting, tells you the same buildings stood there 20 years before, and will stand there again 20 years from now. This visible cycle of renewal is unique in world architecture.

Both Naiku (内宮) and Geku (外宮) are open to the public year-round at no charge. The shrine grounds are always accessible, with shrine offices open from 9:00 to 16:00. For practical visit planning including transport and walking routes, see our Ise Shrine visitor guide. For proper pilgrimage etiquette and worship order, see our pilgrimage guide to Ise Jingu.

From Nagoya, the Kintetsu limited express reaches Iseshi Station in approximately 1 hour and 40 minutes. From Kyoto, the journey takes approximately 2 hours and 30 minutes via Kintetsu. Geku is accessible by a 10-minute bus ride from the station; Naiku by a 15-minute bus ride. Between the two precincts, buses run approximately every 15 minutes.

The Sengu Museum (式年遷宮記念館) near Geku exhibits tools, models, and materials from the 2013 Sengu. If you want to understand the rebuilding process in depth, allow at least an hour here before visiting the shrine precincts.

Frequently Asked Questions

Why do they rebuild Ise Shrine every 20 years instead of preserving the old one?

The Shikinen Sengu reflects core Shinto concepts of renewal and purity — a fresh building is considered spiritually clean. The 20-year cycle also serves a practical purpose: it ensures that master carpenters can pass ancient construction techniques to the next generation while still actively practicing. If the interval were longer, these irreplaceable skills would be lost.

When is the next Shikinen Sengu and can visitors watch?

The 63rd Sengu is scheduled for 2033. Preparatory events including the Okihiki log-pulling festival begin years earlier and are open to the public. However, the final transfer ceremony (Sengu no Gi), where the Sacred Mirror is moved to the new building, takes place at night and is not open to general visitors.

How old is Ise Shrine really?

The traditional founding date is around 4 BC, but this comes from mythology rather than documented records. The first verifiable Shikinen Sengu was in 690 AD under Empress Jito, giving the rebuilding tradition over 1,300 documented years. The buildings themselves are always less than 20 years old — but the practice of rebuilding them is ancient.

Is entry to Ise Shrine free?

Yes. Both Naiku and Geku are open to the public year-round at no charge. The shrine grounds are always accessible, and the shrine offices operate from 9:00 to 16:00. No reservation is needed.