Assyrian people
Late-20th-century DNA investigation done by Cavalli-Sforza, Paolo Menozzi and Alberto Piazza shows that Assyrians have a distinct genetic profile that separate their population from any other population. Genetic study of the Assyrians of Persia showed that they were "closed" with little mixture with the Muslim Persian population and that an single Assyrian's genetic makeup is comparatively close to that of the Assyrian population as a whole. The genetic information goes well with history that religion played a big role in keeping the Assyrian population's separate identity during the Christian era.