史し上じょう唯ゆい一いつ

noun

the first in history; only once in history

Used to emphasize that something is unprecedented or has never happened before. Often appears in news, formal writing, or dramatic statements.

• 彼かれは史し上じょう唯ゆい一いつの五ご冠かん達たっ成せい者しゃだ。

  He is the only person in history to have achieved five titles.

• これは史し上じょう唯ゆい一いつの出で来き事ごととして記き録ろくされた。

  This was recorded as an event that happened only once in history.