暫Chronology

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58060067070080010001080110012201410165017901800 620–669860–9991010–10791160–12191230–14091420–16491690–1789

1

2

1

1

1

1

2

1

1

1

1

1

1

2

2

3

1

1

11 +5

5

2

3

11 +5

6

4

No year recorded 68

+62

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 ↗