Basic (Noninterference)

Basic was the common languague of the Federacy, in which governmental business was conducted. It was also often also the medium of academic teaching, esepcially where a university's fame in a certain field attacted students from many different worlds, such as the Anthropolgy Department of the University of Hyperion.

Basic was lagely similar to English, which gave some advantage to native speakers of English, from the English-speking parts of Earth and worlds settler from them. Still, this was not greatly resented by non-English speakers.

The use of English or English-derived languagues as a lingua franca long predated the Federacy and even space flight itself, dating thousands of years back to the time when all humans were restricted to Earth. After this long passage of time, citizens of the Federacy worlds took it more or less for granted.

Moreover, an Earth-type planet is self-sifficiant in most ways, providing a lot of room for a specific languague and culture to develop - and many languagues and cultures had more than one planet to themselves, for example Greek culture flourished in both New Thessaly and Alexander, as well as the original Greece on Earth.

As described by Stavros Monemvasios, New Thessalians who did not go off-planet or get a Federacy job could very well live their lives knowing no languague but Greek. The same was true for many other languauges having a planet or more than one to themselves.

Literary Note
It is not explicitly mentioned that the Federacy Basic was derived from "Basic English" - a simplified version of English created in the late 1920's and early 1930's by Charles Kay Ogden as an international auxiliary language, and as an aid for teaching English as a second language. However, this derivation seems probable given its name and its being used in the Federacy for precisely the purposes intended by Ogden, though developments over thousands of years and cration of a complex space-faring culutre would presumably have changed it greatly from the original early 20th century version.