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

Synonym of 天動説 (tendōsetsu, “geocentrism”)

global warming

a terrestrial planet

(geology, physics) geophysics

revisionism

"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).

Kyūjitai form of 日本学: Japanology

Kyūjitai form of 禅学: Zen studies; Zen practice

Kyūjitai form of 海洋学: oceanography