こじらいれき
origin and history; particulars
Also written 古事来歴
Noun
彼かれはやたらに故事来歴こじらいれきに詳くわしいけれど、それが人生じんせいの役やくに立たっているのかはなはだ疑問ぎもんだね。
He has a great storehouse of knowledge about historical details but I seriously doubt that's of any use in life.