簡Chronology

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71083010001100122016801700178018001920 720–829840–9991010–10991160–12191230–16791730–17791870–1919

1

3

2

1

1

2

2

1

6

4

2

9 +3

1

3

1

1

1

1

No year recorded 47

+41

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 ↗