Complex sentence: The book was originally written in Rome, in the Greek language, but a Latin translation was made very shortly afterwards; some say, by the original author as a sign of the authenticity of the translation, though others dispute this.
Split into simpler sentences: The book was originally written in Rome, in the Greek language, but a Latin translation was made very shortly afterwards. Some say this was done by the original author as a sign of the authenticity of the translation, though others dispute this.