伽Chronology

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500580600700800970100010801100120014101590160017901800 520–579750–799860–9691010–10791290–14091420–15891700–1789

1

1

1

4

1

6

1

2

1

3

1

1

1

1

1

1

1

4

3

2

1

1

1

1

1

2

1

1

6

3

1

1

1

No year recorded 9

+3

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 ↗