In what year did the Han emperors conquer the first Korean kingdom of Choson? AP World History Chapter 13 In what year did the Han emperors conquer the first Korean kingdom of Choson? a. 220 C.E. b. 643 C.E. c. 476 C.E. d. 500 C.E. e. 109 B.C.E. Answer: E Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+