血Chronology

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50058060080011001280141015901600170018001900 520–579670–799860–10991160–12791290–14091420–1589

1

1

1

2

1

1

2

1

1

1

1

4

1

1

4

2

1

1

9 +3

2

4

4

15 +9

19 +13

5

31 +25

22 +16

11 +5

3

70 +64

4

4

4

3

2

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 ↗