Meanings

traveller's journal

post-era

era

bulletin

travel writing

school discipline

Imperial era

enforcement of official discipline

law and order

Triassic period

new century

end of a century (esp. 19th)

century

last century

twentieth century

Nihon Shoki (second oldest work of Japanese history, compiled in 720 CE)

Cretaceous period

half century

public morals

pre-era