The book substantiates that the Koran, which has been revealed in Arabic, explains precisely, within its context, the literal meaning of every non-Arabic proper names cited in the Koranic verses, irrespective of the particular language from which the particular proper name was derived, even if the language in question, such as the Old Egyptian, had been extinct for several centuries before the time of revelation. The book is a great endeavor to explore a new miraculous feature of the Noble Koran that has ever been veiled.