Prior research has suggested that during the Late Horizon, a period of Inca history, the Inca rounded up people living outside of the Inca Empire and forced them to relocate to places inside the empire as a means of bolstering the population and thus the economy. Unfortunately, to date, evidence for such forced migrations has been scant. In this new effort, the researchers conducted a thorough investigation of the remains of six people buried in a cemetery in what was once a part of the Inca empire during the Late Horizon -- they suspected that all six were people who...