Weshalb fehlen zentralafrikanische Staaten wie z.B. Kamerun auf so vielen Weltkarten?

Why is Central Africa missing from so many maps? Quartz Africa 4.2.2016

"In a 2013 Washington Post article titled “40 maps that explain the world,” at least half of the maps that included Africa were missing one or more Central African countries. Of those, many were missing data for the entire region. Somehow it is common to “explain the world” while saying little about a populated area nearly the size of Australia. In addition to perpetuating the historical bias of minimizing Africa on maps, this lack of information is indicative of many of the challenges these countries face." (Hervorhebungen von mir)