The Quran is the Word of Allah which was sent to Prophet Muhammad - peace and blessings be upon him - fourteen centuries ago. The Quran is the last Revelation from Allah which is widely regarded as the finest piece of speech in the world. The Quran is the main Miracle of Prophet Muhammad who was illiterate, and never received any schooling. The Quran is the source of all the regulations and rulings of Muslim communities. Following the Quran will guarantee happiness in this life and in the next. In addition to that, the Quran contains so many scientific facts which were discovered recently. Those facts are mostly the findings of modern technology like the creation of mountains, the formation of clouds, ……etc. These facts were mentioned in the Quran 1400 years ago at a time when humanity was blinded by ignorance. The Quran is the miracle that Allah has challenged people to bring something like it. The challenge is still intact up to this moment.