Least developed countries - Wikipedia
https://en.wikipedia.org/wiki/Least_developed_countriesThe least developed countries (LDCs) are a list of developing countries that, according to the United Nations, exhibit the lowest indicators of socioeconomic development, with the lowest Human Development Index ratings of all countries in the world. The concept of LDCs originated in the late 1960s and the first group of LDCs was listed by the UN in its resolution 2768 (XXVI) on 18 November 1971.