Lin Su unexpectedly appeared in front of Qin Shihuang, not to assassinate him, but to offer him a map of the world and the blast furnace steelmaking method.
· Development: He established the "Tianji Pavilion" to train Daqin's own scientists and engineers. Meng Tian's cavalry was equipped with telescopes and saddles and horseshoes; Xu Fu's fleet was equipped with compasses and navigation charts, not to seek immortality, but to open up the Maritime Silk Road.
· Climax: The Roman legions arrived at the city, and what greeted them was the primitive rocket launcher array of Qin's "Shenji Battalion". The wheel of world history has completely turned since then.
