The Byzantine and Persian Empires were the super-powers of the time. It was during the years when the few believers were severely persecuted in Makka that the Persians utterly defeated the Byzantines. They had sweeping victories, and conquered Aleppo, Antioch, and the chief Syrian provinces, including Damascus. Jerusalem fell to their arms in 614-615. The Christians were
The concept of the Unseen pertains to what is supra-sensory and metaphysical or even meta-cosmic. In this sense, the past, as well as the future and everything beyond ordinary human senses are all included in the concept of the Unseen, provided that some concrete indications have not been manifest.
Prophet Muhammad, upon him be peace and blessings, gave lots of information about past peoples and events
History is an important branch of knowledge. It is not a science like physics or biology. It mostly depends on documents that have remained of the past. Although we can have knowledge of the past and past events by means of documents, it is quite often very difficult to penetrate into the facts behind those events. We can hardly know the intentions of historical ‘actors’ or ‘actresses’