It  was in that  time   he   was  supposed   to   do   unite   all   the   three  [Black(Africa)Yellow(China) White(America)] type of   human  races.  He  was  successful .But  due  to the  ill  fate  of  the  EARTH ;  continental  drift   started   making   the  people  and  earth   parted.  So  the  saga  continues !