稍Chronology

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610100011001670170018201900 620–9991010–10991200–16691730–1819

2

1

1

1

2

1

1

1

1

1

1

1

1

1

1

9 +3

3

1

1

No year recorded 10

+4

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 ↗