historic, historical / already-happened, past / former, old, traditional

happen / occur

incident, event

old battlefield, site of a battle

many

the past / ancient times

(not of a person) old, aged, antiquated

old

history / the study of history

"Historical kana usage", a prescriptive method of using kana to write Japanese. Devised in the Edo period by Keichū (契沖) and taught in schools until 1946, it aims to be etymologically faithful and reflects earlier stages of the language (Heian period and earlier).