哭Chronology

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580680700830900111012301540160017701840 590–679720–829840–899910–11091140–12291290–15391670–17691780–1839

3

1

1

2

1

1

1

1

1

1

1

2

3

7 +1

2

1

1

No year recorded 13

+7

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 ↗