If they’re even remotely like us, then they’ll have the same sort of story, which will entail multiple languages.
That is: To assume that a sapient, language-capable genus evolves in one place, then spreads across a planet from there.
Even if they all speak the same language when they begin the spread, the same sorts of factors will encourage semantic drift in different ways in different places, and over enough time, multiple languages are all-but inevitable.
It depends a lot on the planet geography and other factors. A global world order or empire is theoretically possible that could result in a majority using a single language. Think if the entire landmass is Asia and Ghengis khan lives a few years longer. There might still be other languages but the majority will have to have some way to communicate with each other especially with any travel based technology similar to ours.
If they’re even remotely like us, then they’ll have the same sort of story, which will entail multiple languages.
That is: To assume that a sapient, language-capable genus evolves in one place, then spreads across a planet from there.
Even if they all speak the same language when they begin the spread, the same sorts of factors will encourage semantic drift in different ways in different places, and over enough time, multiple languages are all-but inevitable.
It depends a lot on the planet geography and other factors. A global world order or empire is theoretically possible that could result in a majority using a single language. Think if the entire landmass is Asia and Ghengis khan lives a few years longer. There might still be other languages but the majority will have to have some way to communicate with each other especially with any travel based technology similar to ours.