1892 Goes with his parents to the theater Honsho Kotobukiza and watches a performance of Yoshida Otono’s “Maneku Furusode” (an inviting kimono sleeve); the scene of torture leaves a profound mark on his mind.
1894 Starts as apprentice with the elephant tusk ivory carver Naito Yasukazu in the district of Honzo Ku Aioi Machi
1895 Starts to collect pictures related to torture.
1896 Starts to draw advertisement for theater plays.
1896 June Goes to the Aoki theater in the
Tokyo district of Hoingo to watch “Nisshin Senso Youchi no Kyutan” (raid nocturne during the Nishiin war) a play in the Zoushishibai ( Outlaw Theater) where a scene of torture of a nurse leaves a deep impression.
1898 While still an apprentice with the ivory carver, uses its moments of leisure to draw ropes of illustrations of women published in the Tokyo Asahi newspaper.
1921 (June) With his pregnant wife Kisei makes the “Rinketsu Bijin Sakasa Tsuri no Shashin” i.e the “Photo in inverted suspension of a beautiful woman in her last month of pregnancy”
1921 Suzuki Senzaburo (1893-1924) theater writer publishes “Hi Aburi” “Burnt by Fire” a play based on the life of Ito
1923 Borrowing a farmers house in Shimotakaido from his deshi Sakamoto Gajou takes with photographer Suzuki Kaminarisui photos of snow torture. The house was noted for his plum tree in the garden, a feature Seiu appreciated.
1925 (summer) starts a theater group concentrating on torture scenes.
1926 (December) Publication of Rinketsu Bijin Sakasa Tsuri no Shashin in the magazine Hentai Shiriou (Pervert Documents) without his authorization. Accompanied by “Rinketsu no josei no tsukasazuri” inverse suspension of a woman in her last month of pregnancy “ by
1927 publication of the first
tome of “Iroha Hiki, Edo to Tokyo Fuzoku Noshi” by ***
1928 publishes the first ever photo book of Kinbaku “Seme no Kenkyuu” Research on torture” immediately forbidden.
1932 Publishes “Bijin Ranpu” (the ecstatic dance of the beautiful women)
he 6th tome of his “ Iroha Hiki – Edo to Tokyo Fuzoku Noshi “
1933 Starts his second theater group
1950 In Asakusa (Tokyo) Hyakumandoru Gekijo (million dollars theater) gives representations of torture theater
1951(April) Until at least January 1954 exchange letters with
1951 Publishes a series of essays in the magazine Ningen Tankyuu
1951 To celebrate the launch of the magazine Amatoria takes part in a group travel (80 person) to the onsen resort of
**** in Izu.
1951 “Mezoku Uramono Jo” (Book on secret things in women jail) edited by Ito Seiu and intended as a supplement to be published inside Amatoria becomes a problem and is finally detached from the magazine.
1978 In the theater Jiyu Gekijo (Free theater), Tamai Keiyu puts out the play “Kiden Itou Seiu” (Bizarre stories Itou Seiu)
1996 Dan Oniroku publishes a chronic of Itou
Seiyu “Sotomichi no Mure” (the heretical crowd)
2002 "Sotomichi no Mure"is adapted to the movies under the title “Oyou”