蝦Chronology

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580900111015401660176018001940 590–899910–11091160–15391550–16591670–17591880–1939

1

2

1

1

2

1

2

2

1

1

134 +128

6

3

1

1

No year recorded 273

+267

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 ↗