No prizes for guessing that English is the world's lingua franca. But how good are the world's other languages at spreading information?
It would have taken geology millions of years to move and mould land masses to the degree suggested here. It took cartography less than a hundred years, from the mid-17th to the mid-18th century.
During World War One, propaganda on both sides fueled the fear that defeat would mean being wiped off the map. Literally, as this German propaganda postcard shows.
What if the Black Plague had killed off almost all Europeans? Then the Reconquista never happens. Spain and Portugal don't kickstart Europe's colonization of other continents. And this is what Africa might have...