背Chronology

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50058060067070083090010001100120014101540160017001800 510–579620–669750–829910–9991010–10991290–14091420–1539

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

2

1

1

1

2

1

3

6

1

10 +4

9 +3

10 +4

3

9 +3

1

1

2

4

4

3

3

5

No year recorded 113

+107

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 ↗