社Chronology

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8309001110141015401650177018001900 840–899910–11091200–14091420–15391600–16491700–1769

3

1

2

1

1

1

1

1

1

1

11 +5

1

1

23 +17

4

3

2

4

5

4

37 +31

4

2

4

2

1

1

No year recorded 157

+151

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 ↗