潤Chronology

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5005808009001000110015401650179018001920 520–579590–799910–9991010–10991160–15391550–16491690–17891850–1919

1

1

1

2

2

1

1

1

2

1

1

1

1

1

1

1

1

5

5

5

2

2

1

1

No year recorded 23

+17

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 ↗