period; Nihon Shoki (second oldest work of Japanese history, compiled in 720 CE); Nihongi; Kii (former province located in present-day Wakayama and southern Mie prefectures)
Examples (7 in total)
その種はこんせいきの終わりまでに絶滅させられるでしょう。
The species will be made extinct by the end of this century.
こんせいきには注目すべき知識の増加があった。
Our century has seen a notable increase of knowledge.