On the other hand, global imperialism has always played a role in forging a lingua franca in many ages, just like Classical Greek in the Hellenistic period and

On the other hand, global imperialism has always played a role in forging a lingua franca in many ages, just like Classical Greek in the Hellenistic period and Latin in Roman Empire. (Disclaimer: I'm not judging the morality of imperialism, just stating the fact.)