Final answer:
The Mongol Empire was the largest contiguous empire in history, second only to the British Empire. It was ruled by Genghis Khan and Kublai Khan and controlled China, Persia, and Central Asia.
Step-by-step explanation:
The empire being referred to in the question is the Mongol Empire. It was the largest contiguous empire in history and was second only to the British Empire. Under the rule of Genghis Khan and later Kublai Khan, the Mongol Empire controlled vast territories including China, Persia, and Central Asia.
Learn more about Mongol Empire