振Chronology

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5806006907008001000110015901600170018001900 620–689840–9991010–10991160–1589

1

2

1

1

1

1

1

1

2

1

4

1

2

2

5

15 +9

7 +1

1

4

1

3

5

6

5

7 +1

2

4

2

3

4

1

7 +1

No year recorded 79

+73

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 ↗