{
  "title": "Grades: six items from Malthus",
  "description": "The six graded items from Malthus's 1798 essay. Each row gives what he wrote, what we compare it with, the grade, the source and a qualifier.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/old-forecasts/malthus/",
  "derived_from": [
    "Malthus 1798, Project Gutenberg 4239",
    "Our World in Data, Population",
    "Hannah Ritchie 2017 and Max Roser 2023, Our World in Data"
  ],
  "method": "Compiled by The What-If Observatory from the data listed",
  "data_credit": [
    "Our World in Data, Population, from Gapminder v7 and UN World Population Prospects 2024, upstream not traced back"
  ]
}