適Chronology

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50067070083010001100168017701800 510–669740–829860–9991010–10991200–16791690–1769

2

3

1

1

2

1

2

3

1

1

2

1

1

4

3

1

1

1

2

No year recorded 14

+8

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 ↗