These were written gradually until around 2 B.C. - 1 B.C. and are said to have been transmitted to Sri Lanka around 1 B.C.; subsequently, many commentaries, essentials and history books of Zogai were produced.
これらは紀元前2世紀-紀元前1世紀ころまでに徐々に形成されたもので、前1世紀ころにスリランカに伝えられたといわれ、以後、多くの蔵外の注釈書、綱要書、史書等が作られた。