辰Chronology

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6108309001000110015401660170018001900 620–829840–899910–9991010–10991200–15391550–1659

1

1

2

2

2

1

1

1

1

2

1

1

1

8 +2

1

1

5

8 +2

1

2

3

25 +19

14 +8

1

11 +5

7 +1

4

1

2

1

No year recorded 115

+109

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 ↗