Global population to soar to 11 billion by 2100 as African population quadruples 

3 billion of those extra 4 billion expected to inhabit the earth by the turn of the century will be from Africa, though many doubt the UN’s projections as current population growth is at least partially caused by foreign and aid and a lack of access to effective contraception.

That said, there was less than a billion people alive in the 18th century, which despite what liberals would have you believe (ie “archaic” = 1950) wasn’t that long ago in terms of human history, and a blink of an eye in terms of planet Earth’s history.