農Chronology

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610670700830100011001590168017001800 620–669720–829840–9991010–10991200–15891600–1679

1

1

1

2

2

1

1

1

1

1

1

2

9 +3

3

2

6

16 +10

5

1

1

11 +5

3

2

No year recorded 63

+57

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 ↗