梨Chronology

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460500580600670700800900970111015401660176018001900 510–579620–669740–799810–899910–969980–11091160–15391600–16591700–1759

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1

2

2

1

1

1

3

1

1

1

1

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2

1

1

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3

2

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4

2

2

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1

No year recorded 46

+40

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 ↗