差Chronology

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5006107008009009601000108011001200141015401660170018001900 520–609910–9591010–10791230–14091420–15391600–1659

2

2

2

1

2

1

2

1

1

5

2

1

1

1

2

2

2

1

1

3

4

1

2

1

1

2

2

1

7 +1

52 +46

1

3

9 +3

8 +2

61 +55

11 +5

9 +3

5

22 +16

1

17 +11

17 +11

2

1

1

4

No year recorded 272

+266

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 ↗