Development across the world reached unprecedented levels during the second half of the 19th century due to the Industrial Revolution. Increased access to international markets, technological improvements, advances in medical practices, expansion of education, and greater access to resources have allowed many countries, particularly those in North America and Europe , to progress rapidly through stages two and three of the demographic transition model. Although the global pace of development has accelerated significantly, the majority of this development has been concentrated in North America and Europe rather than being evenly dispersed across the globe. The widely acclaimed replacement theory, also known as the "out of Africa" ​​theory (see Appendix 1), suggests that Homo sapiens originated in Africa and was replaced through a series of migrations. , those of the species Homo erectus in Eurasia without crossing (Johanson). From a syllogistic point of view, since Homo sapiens originated in Africa and it takes time to develop, Africa should be the most developed continent because the African inhabitants had more time to devote to development than other continents. However, according to the 2013 Human Development Reports published by the United Nations Development Program, out of 186 countries that have designated HDI values, African countries constitute about 37 of the bottom 50 countries in the HDI ranking, while countries of North America and Europe alone constitute. more than 37 out of the first 50. Due to the immense historical documentation of these more developed countries (LDCs) exploiting the less developed countries (LDCs) for their resources, land and population, it can be inferred that there is significant... .. middle of paper ......tion, and the war that was created because of European settlers establishing overlapping borders between nations that did not take into account the relationships between different African tribes. Because the conflicting tribes were often in the same nation, this would lead to war, which would further hinder development as the nation is in a constant state of war. Works cited1. List of HDIs by country: https://data.undp.org/dataset/Table-2-Human-Development-Index-trends/efc4-gjvq2. “Theory outside Africa” http://www.actionbioscience.org/evolution/johanson.html3. Economic development in the third world by: Michael Todaro4. Image of the demographic transition model: http://hs-geography.ism-online.org/2010/09/07/the-demographic-transition-model/5. Information on the demographic transition model: http://www.uwmc.uwc.edu/geography/demotrans/demtran.htm6. Derek Gregory Dictionary of Human Geography