Genghis Khan, born as Temüjin, was the founder of the Mongol Empire, which became the largest contiguous empire in history after his death. He united the Mongolian tribes and led them in a series of military campaigns across Asia and Europe, known for his innovative strategies and brutal tactics. His reign marked significant advancements in trade and communication, including the establishment of the Silk Road as a vital trade route. Genghis Khan's legacy continues to influence modern culture and history, symbolizing both the power of leadership and the complexities of conquest.