祝Chronology

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5105806008309001100120015401600170018001900 520–579620–829840–899910–10991290–1539

1

1

1

1

1

1

2

1

1

2

1

1

1

1

1

1

2

20 +14

15 +9

1

4

3

11 +5

2

1

4

2

1

9 +3

1

1

No year recorded 207

+201

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 ↗