(I am not a native english speaker but a translator asking help for better translation)
I saw the expression, "All these differ from each other in language" and thought it is a typo of 'languages'. But having a typo in the first paragraph of a book is hard to swallow. Here is the actual sentence:
All these differ from each other in language, customs and laws
Just wondering if this "language" isn't a typo but is used to mean something different.
You can see the whole page including the above sentence here: https://buk.io/@10657/1/31665-31806?t=2CK