He launched campaigns against the Sassanid Empire and the Eastern Roman Empire (Byzantine Empire) and thus set in motion a historical trajectory that in just a few decades would lead to one of the largest empires in history.
At its greatest extent, the Umayyad Caliphate covered 5.79 million square miles (15,000,000 km2), making it the largest empire the world had yet seen, and the fifth largest ever to exist.
List of Hondurans | IUCN Red List | Schindler's List | List of Monterrey Institute of Technology and Higher Education faculty | List of Maverick episodes | List of women in the Heritage Floor | List of Doctor Who audio plays by Big Finish | List of heavyweight boxing champions | List of Disney Channel Original Movies | List of Governors of New York | List of Swiss ice hockey champions | List of Presidents of the United States | List of films considered the worst | List of emperors of the Trần Dynasty | The New York Times Best Seller list | List of IOC country codes | List of works published posthumously | List of universities in Switzerland | List of newsreaders and journalists in France | List of Manitoba general elections | Complete list of downloadable songs for the Rock Band series | List of world records in athletics | List of Naruto characters | List of Governors of Georgia | List of French monarchs | List of zones of Nepal | List of video games notable for negative reception | List of Uplift Universe species | List of marine heterobranch gastropods of South Africa | List of Latinised names |