Al-Qur'an - the Holy Scripture of Al-Islam reminds us of an adventurer by the name of Zul-qarnain, meaning 'Bi-horned'. He is one of those upon whom Allah bestowed His Mercy and 'imparted to him the knowledge of the ways and means which serve a purposeful end. And he (was someone who entertained the will which cannot but) purposefully lead the way' to successful achievement (18:83-85). The Scripture tells us that in one of his expeditions, “he reached a stretch territory by two barriers (probably mountains), one on each side beneath which he found a people who could hardly understand a foreign word or language. They said to him (through interpreters) “O you Zul-Qarnain, (the tribes) Gog and Magog are people who have both mischief and ill-will in the composition and they spread discord in the land. May we apportion to you a tribute in payment of raising a rampart between us and them, a rampart that would be invisible against all assaults!' He said (to them): “What Allah has bestowed on me of His bounty which made me manifest in wealth and power far excels your tribute. (What I am expected of you is that) You just help me with your laborious attempt and strenuous exertion of power and I will (by Allah's grace,) erect a barrier between you and them.” (I therefore urged you to) “Bring me blocks or sheets of iron which he (would cause it to be) filled up the space between the two natural barriers”, then he said to them: “Now you may subject it to the action of fire and use your bellows to make it red hot, and then after it has softened, he asked them for a molten brass which he poured on the iron to weld or join together in solid mass. And in consequence, they - the tribes - could not escalade it nor were they able to make their way through it by digging. At the end, (said Zul-Qarnain, in a thankful tone that): 'This is a mercy graciously vouchsafed by Allah, my Creator, and when Allah's predetermined point of time comes to pass, He shall turn it (the barrier) to dust. (For) The Promise of Allah, my Creator, has always been (and shall always be) the truth personified. And on the Day when the promise is fulfilled, We will leave them - the people - in an undulating conformation until the (second) trumpet is sounded and then We assemble them all together in throngs” (18:93-99).