or Geishū was a province

Provinces of Japan

Before the modern prefecture system was established, the land of Japan was divided into tens of kuni , usually known in English as provinces. Each province was divided into gun ....

 in the Chūgoku Region

Chugoku region

The , also known as the , is the westernmost region of Honshū, the largest island of Japan. It consists of the prefectures of Hiroshima, Okayama, Shimane, Tottori and Yamaguchi. It has a population of about 7.8 million.- History :...

 of western Honshū

Honshu

is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

, comprising the western part of what is today Hiroshima Prefecture

Hiroshima Prefecture

is a prefecture of Japan located in the Chūgoku region on Honshu island. The capital is the city of Hiroshima.- History :The area around Hiroshima was formerly divided into Bingo Province and Aki Province. This location has been a center of trade and culture since the beginning of Japan's recorded...

.

When Emperor Shōmu

Emperor Shomu

was the 45th emperor of Japan, according to the traditional order of succession.Shōmu's reign spanned the years 724 through 723.-Traditional narrative:...

 ordered two official temples for each province (one for male Buddhist priests and one for nuns), two temples were founded in Aki Province. The provincial temple was founded in present-day Saijō

Saijo, Hiroshima (Kamo)

Saijō-chō was a town located in Kamo District, Hiroshima, Japan. The town is situated Higashihiroshima.-History:From the earliest times, the fertile region around Saijō has been occupied, as displayed by the Mitsushiro Kofun and the Aki-Kokubunji from the 8th Century...

, Higashihiroshima

Higashihiroshima, Hiroshima

is a city located in Hiroshima Prefecture, Japan.Higashihiroshima is a university town of Hiroshima University. Higashihiroshima is adjacent to Hiroshima, and so also forms a commuter town of Hiroshima....

.

In the late Heian Period

Heian period

The is the last division of classical Japanese history, running from 794 to 1185. The period is named after the capital city of Heian-kyō, or modern Kyōto. It is the period in Japanese history when Buddhism, Taoism and other Chinese influences were at their height...

 (12th century), Aki Province became well known for the Itsukushima Shrine

Itsukushima Shrine

Itsukushima Shrine is a Shinto shrine on the island of Itsukushima in the city of Hatsukaichi in Hiroshima Prefecture in Japan...

. Taira no Kiyomori

Taira no Kiyomori

was a general of the late Heian period of Japan. He established the first samurai-dominated administrative government in the history of Japan.After the death of his father Taira no Tadamori in 1153, Kiyomori assumed control of the Taira clan and ambitiously entered the political realm in which he...

 realized the shrine's importance and donated funds for a new complex of buildings and sutra scrolls. Itsukushima

Itsukushima

is an island in the western part of the Inland Sea of Japan, located in the northwest of Hiroshima Bay. It is popularly known as , the Shrine Island. The island is one of . Itsukushima is part of the city of Hatsukaichi in Hiroshima Prefecture...

 (Miyajima) had a good sea port and had clear strategic significance.

In the Sengoku Period

Sengoku period

The or Warring States period in Japanese history was a time of social upheaval, political intrigue, and nearly constant military conflict that lasted roughly from the middle of the 15th century to the beginning of the 17th century. The name "Sengoku" was adopted by Japanese historians in reference...

, it was the original seat of the Mōri clan

Mori clan

The Mōri clan was a family of daimyō, descended from Ōe no Hiromoto and established themselves in Aki Province. Their name was derived from a shōen in Mōri, Aikō District, Sagami Province. The generation of Hiromoto began to name themselves Mōri.After the Jōkyū War, Mōri was appointed to the jitō...

 until 1600. In 1555, Mōri Motonari

Mori Motonari

was a prominent daimyō in the west Chūgoku region of Japan during the Sengoku period of the 16th century.-Early years:Mōri Motonari was born under the name Shojumaru in a small domain of Aki province in 1497. He is said to have been born at Suzuo Castle, his mother's homeland...

 won the Battle of Itsukushima against Sue Harutaka and established his power in the western part of Honshū

Honshu

is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

.

Mōri Terumoto

Mori Terumoto

Mōri Terumoto , son of Mōri Takamoto and grandson and successor of the great warlord Mōri Motonari, fought against Toyotomi Hideyoshi but was eventually overcome, participated in the Kyūshū campaign on Hideyoshi's side and built Hiroshima Castle, thus essentially founding Hiroshima.Terumoto was a...

, one of the Council of Five Elders

Council of Five Elders

The council of five elders, also known as the five Tairō , was formed by Toyotomi Hideyoshi to rule Japan in the place of his son, Hideyori, until such time as he came of age. Hideyoshi chose his five most powerful daimyo: Ukita Hideie, Maeda Toshiie, Uesugi Kagekatsu, Mōri Terumoto, and the...

 Toyotomi Hideyoshi

Toyotomi Hideyoshi

was a daimyo warrior, general and politician of the Sengoku period. He unified the political factions of Japan. He succeeded his former liege lord, Oda Nobunaga, and brought an end to the Sengoku period. The period of his rule is often called the Momoyama period, named after Hideyoshi's castle...

 appointed for his son Hideyori

Toyotomi Hideyori

was the son and designated successor of Toyotomi Hideyoshi, the general who first united all of Japan. His mother, Yodo-dono, was the niece of Oda Nobunaga....

, sided with Ishida Mitsunari

Ishida Mitsunari

Ishida Mitsunari was a samurai who led the Western army in the Battle of Sekigahara following the Azuchi-Momoyama period of the 17th century. Also known by his court title, Jibunoshō...

 before the Battle of Sekigahara

Battle of Sekigahara

The , popularly known as the , was a decisive battle on October 21, 1600 which cleared the path to the Shogunate for Tokugawa Ieyasu...

 in 1600, and lost Aki and many of his other domains.

After a short rule by Fukushima Masanori

Fukushima Masanori

was a Japanese daimyo of the late Sengoku Period to early Edo Period who served as lord of the Hiroshima Domain. A retainer of Toyotomi Hideyoshi, he fought in the battle of Shizugatake in 1583, and soon became known as one of Seven Spears of Shizugatake which also included Katō Kiyomasa and...

, in 1619, Asano Nagaakira

Asano Nagaakira

was a Japanese samurai of the early Edo period who served as daimyō of the Wakayama domain, and was later transferred to the Hiroshima Domain.Born Asano Iwamatsu, he was the son of Asano Nagamasa, who was a senior retainer of Toyotomi Hideyoshi. In 1594, Nagaakira was made a retainer of Toyotomi...

 was appointed as the daimyo of Hiroshima

Hiroshima

is the capital of Hiroshima Prefecture, and the largest city in the Chūgoku region of western Honshu, the largest island of Japan. It became best known as the first city in history to be destroyed by a nuclear weapon when the United States Army Air Forces dropped an atomic bomb on it at 8:15 A.M...

 with 420,000 koku

Koku

The is a Japanese unit of volume, equal to ten cubic shaku. In this definition, 3.5937 koku equal one cubic metre, i.e. 1 koku is approximately 278.3 litres. The koku was originally defined as a quantity of rice, historically defined as enough rice to feed one person for one year...

. Until the Meiji Restoration

Meiji Restoration

The , also known as the Meiji Ishin, Revolution, Reform or Renewal, was a chain of events that restored imperial rule to Japan in 1868...

, the Asano governed almost all the province.

Aki province was abolished in 1871, and renamed to Hiroshima Prefecture

Hiroshima Prefecture

is a prefecture of Japan located in the Chūgoku region on Honshu island. The capital is the city of Hiroshima.- History :The area around Hiroshima was formerly divided into Bingo Province and Aki Province. This location has been a center of trade and culture since the beginning of Japan's recorded...

. After some mergers the current area of Hiroshima Prefecture was established.

External links

• National Archives of Japan: Itsukushima kakei, illustrated scroll describing Itsukushima, text by Kaibara Eiken (circa 1720)