謹Chronology

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83011201190120016501720179018001940 840–11191130–11891230–16491660–17191730–17891880–1939

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No year recorded 655

+649

Each crop stands at the decade of the first year its book's date gives; a date given only as before a year stands at that year. Dates come from the catalogues and editions cited with each record. The bars draw the whole span and their counts to scale; in the strip below them, fifty years or more with no crop are folded and marked. Japanese dates converted with HuTime ↗