買Chronology

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7109701000110015901650170018001900 720–9691010–10991200–15891600–1649

1

1

1

1

1

1

1

1

1

80 +74

46 +40

1

2

1

7 +1

1

37 +31

4

1

2

2

4

1

2

1

1

2

6

No year recorded 87

+81

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 ↗