乱Chronology

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460500580600700800900960100010801100141015401660177018001940 520–579750–799910–9591010–10791200–14091420–15391600–16591700–17691880–1939

1

2

2

3

2

2

1

2

3

1

2

3

3

2

1

2

2

3

1

1

5

1

2

1

2

1

21 +15

1

16 +10

8 +2

3

8 +2

2

6

1

2

2

1

No year recorded 145

+139

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 ↗