Xu Fu (Hsu Fu; ) was a Chinese alchemist and explorer. He was born in 255 BC in Qi, an ancient Chinese state, and disappeared at sea in 210 BC. He served as a court sorcerer in Qin Dynasty China. Later, he was sent by Qin Shi Huang to the eastern seas twice to look for the elixir of life. His two journeys occurred between 219 BC and 210 BC. It was believed that the fleet included 60 barques with soldiers, ship crewmen, and 3,000 boys and 3,000 girls, and craftsmen of different fields. After he embarked on a second mission in 210 BC, he never returned. Voyage The ruler of Qin Dynasty, Qin Shi Huang, feared death and sought a way to live forever. He entrusted Xu Fu with the task of finding the secret elixir of immortality. In 219 BC, Xu Fu was sent with three thousand virgin boys and girls to retrieve the elixir of life from the immortals on the Mount Penglai, including Anqi Sheng, who was purportedly a magician who was already a thousand years old. Xu sailed for several years without finding the mountain. In 210 BC, when Qin Shi Huang questioned him, Xu Fu claimed there was a giant sea creature blocking the path, and asked for archers to kill the creature. Qin Shi Huang agreed, and sent archers to kill a giant fish. Xu then set sail again, but he never returned from this trip. The Records of the Grand Historian says he came to a place with "flat plains and wide swamps" (平原廣澤) and proclaimed himself king, never to return. Later historical texts were also unclear on the location of Xu's final destination. Records of the Three Kingdoms and Book of the Later Han, and Guadi Zhi all state that he landed in "Danzhou" (亶州), but the whereabouts of Danzhou are unknown. Finally, more than 1,100 years after Xu Fu's final voyage, monk Yichu wrote during the Later Zhou (AD 951–960) of the Five Dynasties and Ten Kingdoms period that Xu Fu landed in Japan, and also said Xu Fu named Mount Fuji as Penglai. This is the "Legend of Xu Fu" in Japan as evidenced by the many memorials to him there. Legacy Xu is said to have brought new farming techniques and knowledge that improved the quality of life of the ancient Japanese people and Xu Fu is said