Who was Zul Qarnayn according to history? Some Muslims seem to say it was Alexander the great but it can't be possible since Alexander is well known throughout history to have no such Islamic belief. So who was Zul Qarnayn?
It appears from the Holy Quran that Thu ulqarnain was a righteous person and that almighty Allah made him capable of control a large portion of earth. This does not mean that he was a Muslim in our Islam today, but he was a good devotee that believed in monotheism which is the most important belief in Islam.