界Chronology

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460500580600700800900960100010801100120014101620170018001900 520–579910–9591010–10791230–14091420–1619

1

1

2

2

6

1

21 +15

1

1

2

2

1

2

4

1

1

1

1

2

1

4

2

3

1

2

3

1

1

1

19 +13

8 +2

14 +8

2

1

5

1

1

7 +1

2

4

12 +6

29 +23

2

4

No year recorded 83

+77

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 ↗