How would an Iceland-sized island in the central Atlantic change history?
Short answerIts position on useful sea lanes would attract early voyagers and later make it a strategic prize contested by Britain, Spain, and other maritime powers.
NotesThe scenario adds an Iceland-sized island at the supplied map location while setting aside ocean-current effects. Its position near useful Atlantic trade routes would make it a valuable prize for Britain, Spain, and other maritime powers. Viking settlement is suggested, followed by the possibility of earlier Phoenician or Roman visitors. The possibility of a surviving Roman-derived state is briefly raised. Early discovery would not guarantee permanent possession of a site that later powers wanted to control.