娑Chronology

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580600700800900110012201410154016001800 820–899910–10991160–12191290–14091420–15391690–1799

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10 +4

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1

2

1

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2

1

1

1

2

2

1

1

1

1

1

1

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2

2

3

No year recorded 1

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 ↗