障Chronology

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510580670700800900960100010801100122014101540166017001800 520–579590–669750–799910–9591010–10791150–12191230–14091420–15391600–1659

2

1

2

1

1

1

2

2

2

1

1

1

2

2

1

1

2

2

1

1

1

1

11 +5

1

1

3

1

11 +5

3

1

1

3

No year recorded 74

+68

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 ↗