RT @MaxCRoser: 500 years of survival curves for cohorts of 1,000 newborns, by age group in England.
From Kertzer & Laslett (1995) https://…
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RT @MaxCRoser: 500 years of survival curves for cohorts of 1,000 newborns, by age group in England.
From Kertzer & Laslett (1995) https://…