壁Chronology

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500580600710900110015401660170018001900 510–579620–709720–899910–10991160–15391550–1659

1

1

3

1

1

1

2

1

4

2

1

7 +1

2

1

14 +8

8 +2

5

1

4

2

5

1

4

2

1

1

3

2

No year recorded 47

+41

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 ↗