演Chronology

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500580600670700800900960110012001410179018001900 520–579620–669810–899910–959970–10991210–14091420–1789

1

1

2

6

3

1

1

1

4

1

1

1

1

2

3

1

1

1

6

2

2

1

1

1

No year recorded 18

+12

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 ↗