Genghis Khan ruled the Mongol Empire, which he founded in the early 13th century. Initially uniting the nomadic tribes of the Mongolian plateau, he rapidly expanded his empire through military conquests, establishing one of the largest contiguous empires in history. His leadership marked significant advancements in military strategy, communication, and trade across Asia and Europe. The Mongol Empire fostered cultural exchanges and established the Silk Road as a crucial trade route. Following his death in 1227, the empire continued to expand under his successors, influencing vast regions across the modern world.