Historically, and even today on a global scale, monolingualism is the exception. In the absence of large state actors (i.e. through most of human history) langu

Historically, and even today on a global scale, monolingualism is the exception. In the absence of large state actors (i.e. through most of human history) languages diversify much more than we are aware of today, and this requires many more people to be familiar with multiple languages.