This is an excellent succinct synopsis of the issue of contradictions and abrogation in the Qu’ran. The Qu’ran can be broadly split into two based on when and where the revelations took place. This article is reblogged with kind permission from Beyond the Cusp – thanks! This is a quick synopsis for those of you who are unaware of things Qu’ranic:

The Quran as we know it today is in reality two quite different books. The older Quran was written in Mecca while the later Quran was written in Medina. This lead some scholars, both Muslim and non-Muslim, to refer to the Quran by its two parts, the Mecca Quran and the Medina Quran.