釈Chronology

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58060070080096010801100122015901680177018001940 820–959980–10791160–12191230–15891600–16791700–17691880–1939

2

3

1

15 +9

1

1

2

1

3

1

1

3

1

1

1

1

2

1

3

1

4

1

4

1

2

4

2

1

1

2

1

No year recorded 46

+40

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 ↗