Fuzoku-go [WO] no tsuzuri
Fuzoku-go [WO] wo, "o" de wa naku sono mama "wo" to tsuzutte iru Shiryou ga ari-masu. 1911-nen ni Soukan sareta "RÔMAZI SEKAI *1" to iu Gekkan-shi desu. Kore wa Nippon-shiki ni motozuita Zasshi de, "wo" wo sono mama de tsuzutte i-masu. Hoka ni wa, "di, kwa, gwa" nado mo tsukatte i-masu. [HA][HE] wa, sono koro kara sude ni "wa, e" to tsuzurarete i-mashita. 1937-nen yori ato wa Kunrei-shiki ga sadamerareta no de, "o" wo tsukau you ni nari-mashita.
- 1885 Nippon-shiki
- 1886 Hebon-shiki (Waei-Gorin-Shuusei Dai 3-han)
- 1937 Kunrei-shiki (Nippon-shiki)
- 1945 Hebon-shiki (GHQ)
- 1954 Kunrei-shiki (Nippon-shiki + Hebon-shiki)
- 1989 ISO-3602 (Nippon-shiki)
