決Chronology

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510580600670700800900100010801100120015401660179018001900 520–579620–669750–799910–9991010–10791230–15391600–16591670–1789

2

1

8 +2

3

2

1

1

4

1

1

2

1

1

1

2

1

5

1

1

2

1

1

1

1

2

1

7 +1

3

1

1

No year recorded 34

+28

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 ↗