索Chronology

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50058060070080011001200141016701700179018001900 510–579750–799840–10991230–14091420–16691740–1789

1

1

4

1

1

1

2

1

1

1

1

1

2

2

7 +1

1

1

1

1

24 +18

1

3

1

2

2

3

1

1

No year recorded 40

+34

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 ↗