緩Chronology

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58083011001690179018001940 590–829840–10991160–16891700–17891890–1939

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No year recorded 34

+28

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 ↗