百ひゃく年ねん前まえ

expression

one hundred years ago; a hundred years previously

A straightforward temporal expression indicating a point in time one century before the reference time.

• 百ひゃく年ねん前まえの今日きょう、この建たて物ものが完かん成せいした。

  One hundred years ago today, this building was completed.

• 百ひゃく年ねん前まえには想そう像ぞうもできなかった技ぎ術じゅつだ。

  It's technology that couldn't have been imagined a hundred years ago.