冬Chronology

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6107409009701000110015401600170018001900 620–739750–899910–9691010–10991200–1539

1

1

1

1

1

1

3

1

1

5

1

1

5

1

4

7 +1

1

16 +10

4

1

6

2

7 +1

3

4

21 +15

17 +11

2

3

18 +12

4

10 +4

3

15 +9

5

1

1

6

No year recorded 169

+163

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 ↗