The correct answer is - The Muslim Empire was the largest empire in the world in 750.
In 750, under the Umayyad Caliphs, the Muslim Empire reach its pinnacle. This empire, at the given point of time, was the biggest empire in the world, and it was stretching on three continents, Asia, Africa, and Europe. It was occupying the Middle East, parts of Central Asia, and it went east to the Indian border in its Asian territory, in Africa it was occupying the northern part of the continent, and in Europe it had the territory of Spain under its rule.
