帳Chronology

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5106707308001110120015901680170018001900 520–669680–729810–11091210–15891600–1679

1

3

1

1

1

1

1

1

1

2

38 +32

12 +6

2

2

3

3

5

8 +2

2

6

2

2

2

5

1

No year recorded 49

+43

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 ↗