The famous Mongol ruler known for his expansive empire and military tactics was Genghis Khan. Born as Temujin in the late 12th century, he united the Mongol tribes and established the Mongol Empire in 1206, which became the largest contiguous empire in history. Genghis Khan was renowned for his innovative military strategies, including the extensive use of speed and mobility in warfare, as well as psychological tactics to intimidate opponents. His reign significantly shaped trade and cultural exchanges across Asia and Europe, paving the way for the Silk Road's revitalization and connections between diverse civilizations.