Cao Lỗ (高魯, also known as Cao Thông, Đô Lỗ, Thạch Thần, or Đại Than Đô Lỗ Thạch Thần) was a Vietnamese weaponry engineer and minister who lived during the reign of King An Dương Vương. According to mythology, he built a crossbow from the claw of a turtle god that can fire 300 arrows in a single shot.[1][2]
Kelley, Liam C. (2014). "Constructing Local Narratives: Spirits, Dreams, and Prophecies in the Medieval Red River Delta". In Anderson, James A.; Whitmore, John K. (eds.). China's Encounters on the South and Southwest: Reforging the Fiery Frontier Over Two Millennia. United States: Brills. pp. 78–106.