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Ishibutai Kofun

Ishibutai Kofun
石舞台古墳 (in Japanese)
Ishibutai Kofun
Ishibutai Kofun is located in Japan
Ishibutai Kofun
Shown within Japan
Alternative nameIshibutoya Kofun
LocationAsuka, Nara Prefecture, Japan
RegionKansai
Coordinates34°28′0.7″N 135°49′34.1″E / 34.466861°N 135.826139°E / 34.466861; 135.826139
TypeTomb
Area27 m2 (291 sq ft)
History
PeriodsAsuka period

Ishibutai kofun (石舞台古墳) is a stone kofun or tumulus of the Asuka period in the east of Shimanoshō, Asuka, Nara Prefecture, Japan. The kofun is believed to be the tomb of Soga no Umako. It occupies an area of 27 m2 (291 sq ft), and is the largest known megalithic structure in Japan.[1] The kofun is also known as the Ishibutoya (石太屋) Kofun.[2] It is located 5 km from Tanzan Shrine.[3]

Name

The name of the kofun in Japanese is a combination of two words, the first, ishi (石), meaning "stone", and the second, butai (舞台), meaning "stage". The name of the kofun therefore originates in its resemblance to a large stone stage.[4] The Ishibutai kofun has been known by this name at least as early as the Tokugawa period, as evidenced by its entry in the Saigoku sanjūsansho meisho zue, a large guide to Buddhist pilgrimage sites written by Kanenari Akatsuki in 1853.[5]

Association with Soga no Umako

The Ishibutai Kofun is inferred to be the tomb of Soga no Umako (559? - 626), and his death during the reign of Empress Suiko is recorded in the Nihon Shoki.

Summer, 5th month, 20th day. The Oho-omi died. He was buried in the tomb at Momohama.[6]

The historian and archeologist Sadakichi Kita (1871 - 1939) proposed that the Ishibutai Kofun is the above-mentioned "Momohana" tomb in the Nihon Shoki. Kita also proposed that the earthen mound of the Ishibutai Kofun was removed after Soga no Umako's death as a punishment of the Soga clan by the imperial government.[7]

Structure

Stone entrance of the Ishibutai Kofun

The Ishibutai Kofun was built on a spur of a mountain that falls northeast to a small plateau. It consists of a platform, a gallery entryway, stone walls that form a tomb, two large stones that form a ceiling for the tomb, and embankments on either side of the tomb. In total 30 stones were used to construct the Ishibutai Kofun. The large granite megaliths come from Mount Tōnomine, which is approximately 3 kilometers (1.9 mi) from the site.

Platform and moat

The Ishibutai kofun originally occupied a much larger area than is evidenced by the existing stone tumulus. It was built on a square platform, which measured 50 m (164 ft) on each side at the time of construction. Archeological excavations have revealed that the kofun was surrounded by a moat, a feature typical of other kofun of the period. This moat is estimated to be 12 m (39 ft) wide. In total the kofun, platform, and moat probably covered an area 85 m (279 ft) long.

Approach

Kofun typically had a stone approach to the entrance path of the tomb. The Ishibutai has a particularly long entrance path, which measures 38 m (125 ft). A shallow drainage channel 11.5 m (38 ft) long and 2.55 m (8 ft) wide runs the length of the entrance path.[8] This entrance was originally covered like the tomb, but its stone ceiling no longer exists.

Tomb

The Ishibutai kofun is a yokoana (横穴) corridor-type tomb [ja]. The inner chamber is 7.5 m (25 ft) long, 3.4 m (11 ft) wide, and 4.8 m (16 ft) high. It consists of 30 stones, 4.7 m (15 ft) by 3.5 m (11 ft) and 7.7 m (25 ft). Small drainage channels run along the east, north, and west of the tomb. These were constructed to drain water collects on the north side of the tomb to feed south into the shallow drainage channel in the kofun entry.

Ceiling

The Ishibutai kofun is especially noted for the megaliths that form the ceiling of the tomb. The ceiling of the tomb is formed by two megaliths, one to the north and one to the south. The megalith at the north of the tomb weighs approximately 60 t (59 long tons), and the larger stone to the south weighs approximately 77 t (76 long tons).

Mound

The Ishibutai kofun was originally a large, flat hōfun [ja] (方墳) type kofun; the existing stone structure was covered at the time of construction by a broad, flat earthen mound. This mound eroded slowly after the construction of the kofun, thus exposing the large megaliths of the tomb roof.[9]

Excavation

Ishibutai Kofun

The Ishibutai Kofun was first excavated by the archaeologist and academic Kōsaku Hamada (1881－1938).[10] Imperial kofun have not been readily excavated in Japan. Due to its association with Soga no Umako, the Ishibutai tumulus does not have an imperial designation, and has thus seen extensive excavation.[11] The kofun was first excavated in 1933, work on the base and moat began in 1935, and excavation of the tomb continued until 1975.

The Ishibutai Kofun excavation yielded no significant finds. Funerary objects were probably lost to grave robbery quite soon after its construction. Stone shards to the southeast of the tomb are the remains of a tuff sarcophagus. Numerous examples of gilt and bronze implements, as well as earthenware shards were found in the banks of the tomb approach. The excavation also revealed that other similar flat stone kofun were built to the north and south of the existing structure.[12]

The Ishibutai Kofun was designated a historical remain in 1935. In 1954 the kofun was fully designated as a Special Historic Sites (特別史跡, tokubetsu shiseki),[13] one of only 75 sites in Japan with this designation. As excavation of the Ishibutai Kofun continued after World War II, significant reconstruction of areas around the kofun were carried out. The kofun and its surrounding area is part of the Asuka Historical National Government Park.

Transportation

The Ishibutai Kofun is accessible from Asuka Station, which is served by the Kintetsu Yoshino Line. The "Kame Bus" (Tortoise Bus), also called the Asuka Tour Bus/Asuka Circle Route Bus, serves all locations within the Asuka Historical National Government Park, and leaves hourly from Asuka Station. Bicycle rentals are also available at numerous points around the station, and cost approximately 1000 yen a day.[14]

  • Stairs to Ishibutai Kofun
    Stairs to Ishibutai Kofun
  • Ishibutai Kofun illuminated in autumn
    Ishibutai Kofun illuminated in autumn
  • Ceiling of Ishibutai Kofun
    Ceiling of Ishibutai Kofun
  • Park surrounding Ishibutai Kofun
    Park surrounding Ishibutai Kofun

See also

References

  1. ^ "Ishibutai Kofuni". Nihon Daihyakka Zensho (Nipponika) (日本大百科全書(ニッポニカ) "Large Encyclopedia of Japan (Nipponika)"). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2012-01-11.
  2. ^ "Ishibutai Kofun". Nihon Rekishi Chimei Taikei (日本歴史地名大系 "Compendium of Japanese Historical Place Names") (in Japanese). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-12-23.
  3. ^ "Google Maps". Google Maps. Retrieved 2023-10-26.
  4. ^ "Ishibutai Kofun". Dijitaru daijisen (デジタル大辞泉 "Digital Dictionary) (in Japanese). Tokyo: Netto Adobansusha. 2012. Archived from the original on 2007-08-25. Retrieved 2012-01-10.
  5. ^ Akatsuki, Kanenari (1991). Saigoku sanjūsansho meisho zue. Kyōto: Rinsenshoten. ISBN 978-4-653-02200-8.
  6. ^ LastName, FirstName (1972). Nihongi; chronicles of Japan from the earliest times to A.D. 697. Rutland, Vt: C.E. Tuttle Co. p. 154. ISBN 0-8048-0984-4.
  7. ^ "Ishibutai Kofun". Nihon Rekishi Chimei Taikei (日本歴史地名大系 "Compendium of Japanese Historical Place Names") (in Japanese). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-12-23.
  8. ^ "Ishibutai Kofun". Nihon Rekishi Chimei Taikei (日本歴史地名大系 "Compendium of Japanese Historical Place Names") (in Japanese). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-12-23.
  9. ^ "Ishibutai Kofun". Kokushi Daijiten (国史大辞典 "Dictionary of Japanese History") (in Japanese). Tokyo: Netto Adobansusha. 2012. Archived from the original on 2007-08-25. Retrieved 2012-01-10.
  10. ^ "Ishibutai Kofun". Encyclopedia of Japan. Tokyo: Netto Adobansusha. 2012. Archived from the original on 2007-08-25. Retrieved 2012-12-12.
  11. ^ "Ishibutai Kofuni". Nihon Daihyakka Zensho (Nipponika) (日本大百科全書(ニッポニカ) "Large Encyclopedia of Japan (Nipponika)"). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2012-01-11.
  12. ^ "Ishibutai Kofun". Nihon Rekishi Chimei Taikei (日本歴史地名大系 "Compendium of Japanese Historical Place Names") (in Japanese). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-12-23.
  13. ^ "Ishibutai Kofun". Nihon Kokugo Daijiten (日本国語大辞典 "Large Dictionary of the Japanese Language") (in Japanese). Tokyo: Netto Adobansusha. 2012. Archived from the original on 2007-08-25. Retrieved 2012-01-10.
  14. ^ "Movement around the Asuka Area". Archived from the original on 2013-01-05. Retrieved 2012-01-13.
Quelle: https://en.wikipedia.org/wiki/Ishibutai_Kofun