International borders
The cartography of 21st century Africa is not exactly as in 1885 but the Berlin conference more than anything gave birth to the layout we know today.
After gaining their freedom in droves in the 1960s, African countries persisted with the colonial era borders even against some suggestions to the contrary.
It is known that the hostility between Ghana’s first president Kwame Nkrumah and Togo’s Sylvanus Olympio, was due to a misunderstanding over a proposal to merge the two countries.