牽Chronology

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50058060083097010001110122012801590160017201800 510–579620–829840–9691010–11091160–12191230–12791290–15891670–1719

1

3

1

1

1

1

1

1

3

1

1

1

1

1

1

1

7 +1

2

8 +2

1

1

1

No year recorded 35

+29

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 ↗