講Chronology

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610710830111015901650170018001900 620–709750–829840–11091150–15891600–1649

1

1

2

2

1

2

3

1

3

6

1

1

2

5

1

11 +5

1

1

1

1

1

No year recorded 111

+105

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 ↗