胸Chronology

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7408001150123015901600170018001900 750–799810–11491160–12291290–1589

1

2

2

1

1

2

1

1

20 +14

22 +16

1

3

2

1

3

6

3

2

11 +5

6

2

1

23 +17

1

3

2

1

No year recorded 106

+100

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 ↗