章Chronology

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610740830960100011001200159016001700178018001900 620–739750–829840–9591010–10991230–15891730–1779

3

1

3

1

1

1

1

2

4

1

1

2

3

3

7 +1

2

14 +8

3

1

9 +3

2

1

4

1

5

5

6

4

1

No year recorded 81

+75

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 ↗