時じ代だい考こう証しょう

noun

historical research; period research

Used especially for verifying historical accuracy in films, dramas, novels, or academic work. Refers to the process of investigating the customs, objects, and events of a specific historical period.

• この時じ代だい劇げきは時じ代だい考こう証しょうがしっかりしている。

  This period drama is well-researched historically.

• 小しょう説せつを書かくために江え戸ど時じ代だいの時じ代だい考こう証しょうを行おこなった。

  I did research into the Edo period in order to write a novel.