Ah, but my tour guide assured me that this great emperor was so enlightened that he came up with the novel idea of SUBSTITUTING terracotta statues for the real warriors so that the real warriors would not have to die when the emperor died. Yes, each warrior was modeled after a real person, but the real person died a natural death. Only the workmen and engineers of the tomb were buried alive so that there would be no trail.
Now, I belive that because my tour guide told me so. < sarc/off >
The Japanese were doing it as late as 1946. Iwo Jima is a prime example.