Meanings

Ordovician period

Quaternary period

Ordovician period

Silurian period

Permian period

Nihon Kōki (third of the six classical Japanese history texts)

Shoku Nihongi (second of the six classical Japanese history texts)

Shoku Nihon Kōki (fourth of the six classical Japanese history texts)

annals-biographies form (of historical writing)

topical-annalistic style (of historical writing)

biography

calendar era

Buddhist calendar

years (since the start of an era)

Christian Era

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

Kii (former province located in present-day Wakayama and southern Mie prefectures)

millennials

Kishu (Japanese dog breed)

Holocene Era (calendar year numbering system)