針Chronology

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51071090011301230154016001700178018001900 520–709720–899910–11291160–12291290–15391730–1779

1

1

1

1

4

1

1

1

1

1

2

11 +5

1

2

128 +122

4

7 +1

4

2

1

2

6

2

3

3

9 +3

2

No year recorded 41

+35

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 ↗