徐福
An earlier account claims that in 219 BC, emperor Shi Huang sent an expedition of some 3,000 convicts to a place which was located far off to the east, across the ocean, a place which was called Fusang, where they were required to make a sacrifice to a volcano god who held the elixir of life. Apparently, two expeditions were undertaken by Xu Fu, the court sorcerer, in order to seek the elixir of life. The first expedition returned c. 210 BC because Xu Fu claimed that a giant sea creature was blocking his men's path. Archers were then sent to kill this monster when the expedition set out a second time, but it was never heard from again. However, "... asides in the "Record of the Historian" imply that its leader Xu Fu had returned to China long ago and was lurking somewhere near Langya, frittering away the expedition's impressive budget."