Question: What common abbreviated name is given to the Japanese National Treasure that is housed at Okura Museum of Art , Tokyo ?

text: List of National Treasures of Japan (writings: Japanese books)
Treasures -- Japanese literature
Waka ( `` Japanese poem '' ) or uta ( `` song '' ) is an important genre of Japanese literature . The term originated in the Heian period to distinguish Japanese-language poetry from kanshi , poetry written in Chinese by Japanese authors . [ 35 ] [ 36 ] Waka began as an oral tradition , in tales , festivals and rituals , [ nb 4 ] and began to be written in the 7th century . [ 14 ] [ 37 ] [ 38 ] In the Asuka and Nara periods , `` waka '' included a number of poetic forms such as tanka ( `` short poems '' ) , chōka ( `` long poems '' ) , bussokusekika , sedōka ( `` memorized poem '' ) and katauta ( `` poem fragment '' ) , but by the 10th century only the 31-syllable tanka survived . [ 35 ] [ 39 ] [ 40 ] The Man'yōshū , of the mid-8th century , is the primary record of early Japanese poetry and the first waka anthology . [ 16 ] [ 41 ] It contains the three main forms of poetry at time of compilation : 4,200 tanka , 260 chōka and 60 sedōka ; dating from 759 backwards more than one century . [ nb 5 ] [ 20 ] [ 42 ] The early 9th century , however , was a period of direct imitation of Chinese models making kanshi the major form of poetry at the time . [ 43 ] [ 44 ] In the late 9th century , waka and the development of kana script rose simultaneously with the general revival of traditional values , culminating in the compilation of the first imperial waka anthology , the Kokinshū , in 905 . [ 26 ] [ 45 ] It was followed in 951 by the Gosen Wakashū ; in all seven imperial anthologies were compiled in the Heian period . [ 46 ] [ 47 ] The main poetic subjects were love and the four seasons ; the standards of vocabulary , grammar and style , established in the Kokinshū , dominated waka composition into the 19th century . [ 45 ] [ 48 ] [ 49 ] At the end of the Heian period , the aristocracy lost political and economical power to warrior clans , but retained the prestige as custodians of high culture and literature . [ 34 ] [ 58 ] Nostalgia for the Heian court past , considered then as classical Japanese past ( as opposed to Chinese past ) , created a renaissance in the arts and led to a blossoming of waka in the early Kamakura period . [ 34 ] [ 59 ] [ 60 ] Poets of middle and lower rank , such as Fujiwara no Shunzei , Saigyō Hōshi and Fujiwara no Teika , analyzed earlier works , wrote critical commentaries , and added new aesthetic values such as yūgen to waka poetry . [ 61 ] [ 62 ] [ 63 ] Some of the best imperial anthologies and best poetic anthologies , such as Shunzei 's Korai fūteishō , were created in the early Kamakura period . [ 34 ] The audience was extended from the aristocracy to high ranking warriors and priests , who began to compose waka . [ 64 ] [ 65 ] [ 66 ] By the 14th century , linked verse or renga superseded waka poetry in importance . [ 67 ] [ 68 ] There are 29 National Treasures of 14 collections of waka and two works on waka style , compiled from between the 8th and the mid-13th century with most from the Heian period . The two works of waka theory are Wakatai jisshu ( 945 ) and Korai fūteishō ( 1197 ) . The collections include the two first imperial waka anthologies : Kokinshū ( 905 , ten treasures ) and Gosen Wakashū ( 951 ) ; seven private anthologies : Man'yōshū ( after 759 , three treasures ) , Shinsō Hishō ( 1008 ) , Nyūdō Udaijin-shū ( before 1065 ) , Sanjūrokunin Kashū ( ca . 1112 ) , Ruijū Koshū ( before 1120 ) , Shūi Gusō ( 1216 ) , Myōe Shōnin Kashū ( 1248 ) ; and five utaawase contents : including one imaginary content ( Kasen utaawase ) , the Konoe edition of the Poetry Match in Ten Scrolls ( three treasures ) , Ruijū utaawase , the Poetry competition in 29 rounds at Hirota Shrine and the Record of Poetry Match in Fifteen Rounds . The designated manuscripts of these works found in this list date from the Heian and Kamakura periods . [ 4 ]
The term National Treasure has been used in Japan to denote cultural properties since 1897,
although the definition and the criteria have changed since the introduction of the term. The written materials in the list adhere to the current definition, and have been designated National Treasures according to the Law for the Protection of Cultural Properties that came into effect on June 9, 1951. The items are selected by the Ministry of Education, Culture, Sports, Science and Technology based on their especially high historical or artistic value. Writing was introduced from Korea to Japan around 400 AD (in the form of Chinese books), with work done in Chinese by immigrant scribes from the mainland. [nb 1] Literacy remained at an extremely marginal level in the 5th and 6th centuries, but during the 7th century a small number of Japanese scholar-aristocrats such as Prince Shōtoku began to write in Chinese for official purposes and in order to promote Buddhism. By the late 7th century, reading and writing had become an integral part of life of some sections of the ruling and intellectual classes, particularly in government and religion. The earliest extant large-scale works compiled in Japan are the historical chronicles Kojiki (712) and Nihon Shoki (720). Other early Japanese works from the Nara period include biographies of Prince Shōtoku, cultural and geographical records (fudoki) and the Man'yōshū, the first anthology of Japanese poetry. Necessarily all of these works were either written in Chinese or in a hybrid Japanese-Chinese style and were modeled on Chinese prototypes. The development of a distinct Japanese script (kana) in the 9th century was the starting point of the classical age of Japanese literature and led to a number of new, uniquely Japanese genres of literature, such as tales (monogatari) or diaries (nikki). Because of the strong interest and support in literature of the Heian court, writing activities flourished particularly in the 10th and 11th centuries. This list contains books of various type that have been compiled in Classical and early Feudal Japan.
Name Authors Remarks Date Format Present location
Collection of Ten Thousand Leaves ( 万葉集 , Man'yōshū ) possibly Fujiwara no Korefusa ( 藤原伊房 ) , grandson of Fujiwara no Yukinari Also called Aigami Edition ( or Ranshi Edition ) after the blue dyed paper ; transcription is said to have been completed within 4 days only ( according to postscript in first volume ) ; written in a masculine style atypical for the period 1050 late Heian period Fragments of one handscroll ( vol . 9 ) , ink on aigami dyed paper , 26.6 cm × 1,133 cm ( 10.5 in × 446.1 in ) Kyoto Kyoto Kyoto National Museum Kyoto National Museum , Kyoto
Collection of Ten Thousand Leaves ( 万葉集 , Man'yōshū ) or Kanazawa Manyō ( 金沢万葉 ) unknown Handed down in the Maeda clan which had its headquarters in Kanazawa 1000 Heian period , 11th century One bound book ( fragments of vol . 3 ( two sheets ) and 6 ( five sheets ) ) , ink on decorative paper with five-colored design ( 彩牋 , saisen ) , 21.8 cm × 13.6 cm ( 8.6 in × 5.4 in ) Tokyo Tokyo Maeda Ikutokukai Maeda Ikutokukai , Tokyo
Anthology of Ten Thousand Leaves , Genryaku Edition ( 元暦校本万葉集 , Genryaku kōbon Man'yōshū ) various various Man'yōshū edition with the largest number of poems 1000 Heian period , 11th century ; vol . 6 : Kamakura period , 12th century ; postscript on vol . 20 from June 9 , 1184 20 books bound by fukuro-toji , ink on decorated paper , 25.0 cm × 17.0 cm ( 9.8 in × 6.7 in ) Tokyo Tokyo Tokyo National Museum Tokyo National Museum , Tokyo
Collected Japanese Poems of Ancient and Modern Times ( 古今集 , Kokinshū ) Fujiwara no Kiyosuke attributed to Fujiwara no Kiyosuke - 1100 Heian period , 12th century Two bound books Tokyo Tokyo Maeda Ikutokukai Maeda Ikutokukai , Tokyo
Collected Japanese Poems of Ancient and Modern Times ( 古今集 , Kokinshū ) , Kōya edition unknown Oldest extant manuscript of the Kokin Wakashū 0905 Heian period Fragments of scroll 19 Tokyo Tokyo Maeda Ikutokukai Maeda Ikutokukai , Tokyo
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Gen'ei edition possibly Fujiwara no Sadazane , grandson of Fujiwara no Yukinari Oldest complete manuscript of the Kokin Wakashū 1120-07-24 Heian period , July 24 , 1120 Two bound books , ink on decorative paper , 21.1 cm × 15.5 cm ( 8.3 in × 6.1 in ) Tokyo Tokyo Tokyo National Museum Tokyo National Museum , Tokyo
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Manshu-in edition unknown - 1000 Heian period , 11th century One scroll , ink on colored paper Kyoto Kyoto Manshuin Manshu-in , Kyoto
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) Fujiwara no Teika transcription by Fujiwara no Teika With attached imperial letters by Emperor Go-Tsuchimikado , Emperor Go-Nara and the draft of a letter by Emperor Go-Kashiwabara 1226-04-09 Kamakura period , April 9 , 1226 One bound book Kyoto Kyoto Reizeike Shiguretei Bunko Reizei-ke Shiguretei Bunko ( 冷泉家時雨亭文庫 ) , Kyoto
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Kōya edition unknown Oldest extant manuscript of the Kokin Wakashū 1000 Heian period , 11th century One handscroll ( no . 5 ) , ink on decorative paper , 26.4 cm × 573.6 cm ( 10.4 in × 225.8 in ) Tokyo Tokyo Private private , Tokyo
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Honami edition unknown The name of the edition refers to the painter Honami Kōetsu who once owned this scroll ; 49 waka from the twelfth volume ( Poems of Love , II ) ; written on imported , Chinese paper with design of mica-imprinted bamboo and peach blossoms 1000 late Heian period , 11th century Fragments of one scroll ( no 12 ) , ink on decorated paper . 16.7 cm × 317.0 cm ( 6.6 in × 124.8 in ) Kyoto Kyoto Kyoto National Museum Kyoto National Museum , Kyoto
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Kōya edition unknown Oldest extant manuscript of the Kokin Wakashū 1000 Heian period , 11th century One scroll ( no . 20 ) Kochi Kochi Tosa Yamauchi Family Treasury and Archives Tosa Yamauchi Family Treasury and Archives , Kōchi , Kōchi
Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集 , Kokin Wakashū ) , Kōya edition possibly Fujiwara no Yukinari Oldest extant manuscript of the Kokin Wakashū 1000 Heian period , 11th century One scroll ( no . 8 ) , ink on decorated paper Yamaguchi Hofu Mori Museum Mōri Museum , Hōfu , Yamaguchi
Preface to the Collected Japanese Poems of Ancient and Modern Times ( 古今和歌集序 , Kokin Wakashū -jō ) attributed to Minamoto no Shunrai - 1100 Heian period , 12th century One handscroll , 33 sheets , ink on colored paper Tokyo Tokyo Okura Shukokan Museum of Fine Arts Okura Museum of Art , Tokyo
Later Collection ( 後撰和歌集 , Gosen Wakashū ) Fujiwara no Teika collated by Fujiwara no Teika 1,425 poems , primarily those that were rejected for inclusion in the Kokin Wakashū 1234-03-02 Kamakura period , March 2 , 1234 One bound book Kyoto Kyoto Reizeike Shiguretei Bunko Reizei-ke Shiguretei Bunko ( 冷泉家時雨亭文庫 ) , Kyoto
Poetry Contest ( 歌合 , utaawase ) , ten volume edition purportedly Prince Munetaka Handed down in the Konoe clan 1000 Heian period , 11th century Five scrolls ( vol . 1 , 2 , 3 , 8 , 10 ) , ink on paper Tokyo Tokyo Maeda Ikutokukai Maeda Ikutokukai , Tokyo
Poetry Contest ( 歌合 , utaawase ) , ten volume edition purportedly Prince Munetaka Handed down in the Konoe clan 1000 Heian period , 11th century One scroll ( vol . 6 ) , ink on paper , 28.8 cm × 284.1 cm ( 11.3 in × 111.9 in ) Kyoto Kyoto Yomei Bunko Yōmei Bunko , Kyoto
Poetry Contest of Great Poets ( 歌仙歌合 , kasen utaawase ) attributed to Fujiwara no Yukinari Poems in two-column style of 30 famous poets including Kakinomoto no Hitomaro and Ki no Tsurayuki 1050 Heian period , mid 11th century One scroll , ink on paper Osaka Izumi Kobuso Memorial Museum of Arts Kubosō Memorial Museum of Arts , Izumi , Osaka
Poems from the Poetry Match Held by the Empress in the Kanpyō era ( 寛平御時后宮歌合 , kanpyō no ontoki kisai no miya utaawase ) purportedly Prince Munetaka This scroll was part of the fourth scroll of the ten scroll Poetry Match in Ten Scrolls which was handed down in the Konoe clan ; contains 36 of the extant 43 poems from this collection 1000 Heian period , 11th century One scroll , ink on paper , 28.8 cm × 1,133.2 cm ( 11.3 in × 446.1 in ) Tokyo Tokyo Tokyo National Museum Tokyo National Museum , Tokyo
Foolish Verses of the Court Chamberlain ( 拾遺愚草 , Shūi gusō , lit . : Gleanings of Stupid Grass ) Fujiwara no Teika Private anthology of 2,885 poems by Fujiwara no Teika 1216 Kamakura period , 1216 Three bound books Kyoto Kyoto Reizeike Shiguretei Bunko Reizei-ke Shiguretei Bunko ( 冷泉家時雨亭文庫 ) , Kyoto
Notes on Poetic Style Through the Ages ( 古来風躰抄 , korai fūteishō ) Fujiwara no Shunzei Original ( first ) edition 1197 Kamakura period , 1197 Two bound books Kyoto Kyoto Reizeike Shiguretei Bunko Reizei-ke Shiguretei Bunko ( 冷泉家時雨亭文庫 ) , Kyoto