究Chronology

‹ ›

510580600700800900960100010801100120015401660179018001910 520–579720–799910–9591010–10791230–15391600–16591670–17891810–1909

1

1

6

1

1

1

3

1

1

1

2

1

1

1

2

1

1

3

1

1

3

1

1

1

1

1

1

No year recorded 30

+24

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 ↗