鐵Chronology

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500580670700800900110015401660177018001930 510–579590–669720–799810–899910–10991200–15391600–16591700–17691880–1929

1

2

3

1

2

1

1

1

3

1

9 +3

1

1

1

1

1

9 +3

1

1

19 +13

2

2

1

1

6

No year recorded 51

+45

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 ↗