Genghis Khan was instrumental in shaping world history through empire building. As the founder of the Mongol Empire, he united disparate tribes and established one of the largest contiguous empires in history. His conquests transformed trade, connecting the East and West via the Silk Road, fostering cultural and economic exchanges. Genghis Khan's military strategies and organizational skills led to innovations in warfare and governance. Additionally, he promoted policies of religious tolerance and meritocracy, influencing the political landscape of numerous regions and leaving a lasting legacy on global history.