No date was available from the Wikipedia article, so we used the date of retrieval.
- Land border length: The length of each country's land border. Islands are listed as having a 0.0 km.
- Overview: A geopolitical overview of every sovereign country in the world, briefly examining their recent history and place on the global stage. The texts are taken from the BBC News website.
SOURCES: Wikipedia: List of sovereign states and dependent territories by continent (Africa); Wikipedia: List of countries and territories by land borders (Land borders) (Note: land border lengths will vary depending on the scale by which they are measured, and therefore these figures without a source accompanied by an explanation of how they were measured and at what scale makes comparisons impossible; for more information see coastline paradox .); British Broadcasting Corporation 2014