述Chronology

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5807408309001100120015401650170018001900 590–739750–829840–899910–10991230–15391550–1649

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

3

2

1

1

3

8 +2

1

3

4

18 +12

5

3

1

1

1

No year recorded 54

+48

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 ↗