Izumo City, Shimane Prefecture

Where the gods
gather.

In the tenth month of the old lunar calendar, the gods of all Japan are said to gather in Izumo — so everywhere else that month is called "Kannazuki," the Month Without Gods, while Izumo alone calls it "Kamiarizuki," the Month With Gods. That single tradition captures the character of this place: Japan's oldest chronicles tell of the myth of the "Kuniyuzuri," the Land-Ceding; a colossal shrine hall once said to pierce the clouds astonished the aristocrats of the Heian court; and 358 bronze swords lay buried beneath a rice-paddy footpath for two thousand years. Here we've gathered the "whys" behind Izumo Taisha and Izumo City — the ones that never quite fit in a tourist guide — from both myth and archaeology.

Read the Kuniyuzuri Myth Read the Great Hall Mystery

Four Keys to Understanding Izumo

Why does this place feel so thick with the presence of the gods?

Centered on Izumo Taisha, the Grand Shrine dedicated to Okuninushi, Izumo City has long illuminated Japan's ancient history from two directions at once — myth and archaeology. One thread is the Kuniyuzuri myth recorded in the Kojiki and Nihon Shoki, and the matchmaking faith that grew out of it. Another is the little-known ancient reality behind the great hall of Izumo Taisha, which Heian-period aristocrats ranked as "Untai" — the tallest building in Japan, surpassing even the Great Buddha Hall of Todai-ji. Another is the staggering quantity of bronze artifacts unearthed from the fields of Kojindani and Kamo-iwakura, a find that rewrote the record for bronzeware discovered in Japan up to that point. And the last is the sweeping Kunibiki myth — the "land-pulling" story of a landmass drawn in from across the sea — still preserved today in the 1,300-year-old Izumo no Kuni Fudoki. This site follows each of these four threads, one per page.

Walk Through the Site

Eleven Rooms

Each page stands on its own — start wherever interests you most.

01 — Myth

Okuninushi and the Kuniyuzuri Myth

Why did the god who built the land become the god of matchmaking? Read the heart of the myth.

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02 — Myth

Susanoo and Yamata-no-Orochi

From a banished, unruly god to the slayer of an eight-headed serpent who built his palace in Izumo.

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03 — Welcoming the Gods

Kamiarizuki: All the Gods of Japan

Why the tenth lunar month, "Kannazuki" everywhere else, becomes "Kamiarizuki" only in Izumo.

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04 — Architecture

The Mystery of the Great Hall's Height

"Untai, Wani, Kyosan." A colossal pillar found underground that backs up the 48-meter theory.

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05 — The Land

The Kunibiki Myth and the Fudoki

The god who hauled land across the sea with a great rope. How Izumo took its shape.

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06 — Archaeology

The Bronzes of Kojindani & Kamo-iwakura

358 bronze swords found beside a farm path — the discovery that rewrote our picture of ancient Izumo.

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07 — The Priestly House

The Izumo Kokuso Family and Its Successions

A priestly lineage 1,300 years unbroken. The Senge and Kitajima houses, and the history of the periodic shrine renewal.

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08 — A Walking Tour

Around the Shrine Grounds and Beach

Sogasha, Inochinushi-sha, Inasa Beach, Hinomisaki Shrine — the small sacred sites around the Grand Shrine.

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09 — Food

Izumo's Food and Its Ties to Matchmaking

Izumo soba, the zenzai sweet red-bean soup said to have originated as "Jinzai-mochi," and the Seven Delicacies of Lake Shinji.

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10 — Odd Tales

Urban Legends & Mysteries

Is it really lucky to tuck money into a shimenawa rope? We weigh the rumors against the official word.

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11 — Travel

Sightseeing Spots

A guide to Izumo City, from the Ancient Izumo History Museum to the Hinomisaki Lighthouse.

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Overview

A Quick Timeline of Izumo

Myth, archaeology, and the history of faith each unfold on their own timescale in Izumo. See each page for the full story.

Age of the Gods

Susanoo slays Yamata-no-Orochi and builds his palace at Suga

Banished from Takamagahara, Susanoo defeats the serpent at the upper reaches of the Hii River and marries Kushinada-hime. A sword found in the serpent's tail becomes one of the Three Sacred Treasures.

Age of the Gods

Izumo Taisha is said to have been founded through the Kuniyuzuri

The Kojiki and Nihon Shoki tell how, when Okuninushi ceded the land to Amaterasu, a magnificent palace was built in recognition of his deeds.

Yayoi period

A great cache of bronzeware is buried at Kojindani and Kamo-iwakura

Two sites barely 350–500 meters apart yield 358 bronze swords and 39 bronze bells (combined) — a quantity that overturned everything then assumed about bronze finds.

733

The Izumo no Kuni Fudoki is compiled

Nearly the only surviving fudoki to come down to us almost complete. Its opening Kunibiki myth still shapes how Izumo's land is understood today.

c. 970

The Kuchizusami records "Untai, Wani, Kyosan"

A primer for aristocratic children names the great hall of Izumo Taisha as Japan's tallest building, ahead of Todai-ji's Great Buddha Hall and the Heian palace's Daigokuden.

1344

The Izumo Kokuso family splits into the Senge and Kitajima houses

After a succession dispute, the two houses come to share the priestly duties. Today the Senge house holds the position of chief priest of Izumo Taisha.

2000

A colossal "Uzu pillar" is unearthed on the shrine grounds

A pillar bundling three great cedar trunks, roughly 3 meters across, is discovered — powerful physical evidence for the theory of a colossal ancient shrine hall.

Today

Kamiarizuki still welcomes the gods

Every tenth lunar month, rites begin with the god-welcoming ceremony at Inasa Beach, and continue to welcome the gods of the whole nation.

Start Here

Was there really a shrine hall tall enough to pierce the clouds?

The Kuchizusami, a primer written for children of the Heian court, ranks the largest buildings in Japan of its day as "Untai, Wani, Kyosan" — first Izumo Taisha, second the Great Buddha Hall of Todai-ji, third the Daigokuden of the Heian palace. Shrine tradition holds that the great hall stood 16 jo (roughly 48 meters) tall, but for a long time this was dismissed as little more than legend.

That assumption was overturned in the year 2000. Excavations on the shrine grounds uncovered the traces of astonishingly massive pillars, roughly 3 meters in diameter. Known as "Uzu pillars," each one bundling three great cedar trunks bound with metal rings, they stood as physical evidence for the theory of a colossal shrine hall. How close does the legendary high-rise sanctuary come to historical fact? The next page follows that story.

Read the Mystery of the Great Hall's Height →