臂Chronology

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500610670700850900110012301540160017901850 510–609620–669740–849910–10991160–12291290–15391690–17891800–1849

1

1

6

1

4

2

1

3

1

1

1

1

1

1

1

1

2

1

2

1

No year recorded 8

+2

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 ↗