使Chronology

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500580600700800900970100011001200141015401600170018001900 520–579840–899910–9691010–10991290–14091420–1539

1

2

2

5

1

7 +1

1

1

1

1

4

1

2

1

1

2

2

1

1

1

3

4

1

1

2

1

1

1

1

7 +1

1

5

3

2

14 +8

2

11 +5

480 +474

2

7 +1

4

10 +4

9 +3

1

5

12 +6

7 +1

22 +16

29 +23

23 +17

19 +13

2

6

1

9 +3

2

No year recorded 858

+852

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 ↗