像Chronology

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61069070080090010801100120014101540164017201800 620–689840–899910–10791230–14091420–15391550–16391670–1719

9 +3

1

1

1

1

1

3

1

1

1

3

2

1

3

2

1

2

2

1

1

1

2

1

1

2

19 +13

1

6

1

No year recorded 29

+23

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 ↗