各Chronology

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5005806007008009001000108011001200141015401600170018001900 520–579840–899910–9991010–10791290–14091420–1539

1

1

2

6

1

7 +1

1

1

2

1

1

1

1

4

2

2

2

1

2

1

2

1

3

2

1

1

2

1

1

1

1

5

1

11 +5

8 +2

2

38 +32

17 +11

52 +46

1

1

1

3

7 +1

5

2

1

5

7 +1

8 +2

2

14 +8

29 +23

3

1

4

6

6

12 +6

No year recorded 300

+294

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 ↗