雪Chronology

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5006106807408009001100120015401600170018001900 510–609620–679690–739750–799810–899910–10991230–1539

1

1

1

1

1

1

3

1

1

2

1

1

1

17 +11

1

5

1

1

55 +49

12 +6

6

3

1

3

2

20 +14

13 +7

24 +18

5

17 +11

16 +10

4

23 +17

9 +3

1

3

2

No year recorded 189

+183

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 ↗