The miraculous nature of the Qur'an lies in the knowledge it contains and this is an everlasting, renewable and a living proof. The Qur'an was given to mankind more than fourteen centuries ago. Recent advancements in various sciences have revealed innumerable facts. None of these discoveries contradict a single verse of the Qur'an. In fact, each time the world makes a breakthrough in unraveling the universe, we increase in certainty that the One who created this universe is the One who revealed the Qur'an.
It is filled with important facts which were revealed at a point in human history when no man could possibly have known them. The Qur'an speaks about the origins of the universe, workings of celestial bodies, stages of embryonic human development, behavioral patterns of species, historical and archaeological truths, etc.
The Qur'an contains over 6,000 Ayat [verses] with over 70,000 words, yet it is a fact that not a single word, phrase, sentence or topic needs to be revised. It is also the case that a writer usually has knowledge of a specific subject or a few related subjects. For example, one can write about history or economics or philosophy or physics etc. But it is not possible for a human being to write simultaneously on a great variety of different subjects with such in-depth and accurate information. Even a casual reader finds that the Qur'an discusses an array of subjects with the accuracy and precision to make them appear to be the observations of an eye witness expert.