tsarism

politics

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

political

system, organization

a czar, a tsar

(music) rhythm

history / the study of history

Russia

"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).