議Chronology

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460500610700800900960100010801100120015401650170018001900 520–609910–9591010–10791230–15391600–1649

1

2

3

1

7 +1

1

2

1

1

2

4

2

2

2

1

1

1

3

1

3

1

1

2

1

1

2

1

2

15 +9

4

1

64 +58

8 +2

2

8 +2

1

1

7 +1

2

1

4

3

5

5

1

1

5

5

11 +5

No year recorded 178

+172

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 ↗