睡Chronology

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500610670700800900111014101540166017501800 520–609620–669720–799910–11091160–14091420–15391600–16591670–1749

1

1

1

1

1

1

1

1

2

1

1

1

2

1

1

1

4

1

1

6

1

1

3

No year recorded 16

+10

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 ↗