飾Chronology

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500580600670700800900110012001680170018001900 520–579620–669840–899910–10991210–1679

1

1

1

3

1

2

1

1

4

2

1

1

1

1

2

1

1

5

2

2

3

6

1

2

11 +5

1

1

2

1

No year recorded 30

+24

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 ↗