historic
adj
famous or important in history 历史上著名的或重要的
the historic spot on which the first pilgrims landed in America 初期的英国移民登上美洲大陆的具有历史意义的地点
This is a(n) historic occasion, ie will be regarded as a significant event in history. 这是具有重大历史意义的时刻.
historic times, ie those of which the history is known and recorded 有历史记载的时期.