角Chronology

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5005806007008309001000110015401600170018001900 510–579760–829840–899910–9991010–10991200–1539

1

1

1

1

1

1

1

2

1

1

2

1

1

3

7 +1

1

1

3

2

5

2

52 +46

7 +1

1

10 +4

5

2

9 +3

23 +17

72 +66

9 +3

8 +2

12 +6

50 +44

22 +16

6

12 +6

8 +2

1

5

2

1

2

1

No year recorded 241

+235

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 ↗