"..and We sent down Iron.." [Quran 57:25]

More than 1400 years ago the Quran mentioned that Iron was "Sent Down". But to the people of that time this may have been something hard to understand. But now thanks to the advances in Science we know that Iron was indeed sent down to earth 4.5 billion years ago.

Watch this video documentary and you will see why. It gets more interesting from 4:30mins.

References:

http://www.islamicity.com/mosque/quran/57.htm

http://quransearch.com/ac20.htm