In principle, membership of these three groups is not hereditary. The child of Inner Party parents is in theory not born into the Inner Party. Admission to either branch of the Party is by examination, taken at the age of sixteen. Nor is there any racial discrimination, or any marked domination of one province by another. Jews, Negroes, South Americans of pure Indian blood are to be found in the highest ranks of the Party, and the administrators of any area are always drawn from the inhabitants of that area. In no part of Oceania do the inhabitants have the feeling that they are a colonial population ruled from a distant capital. Oceania has no capital, and its titular head is a person whose whereabouts nobody knows. Except that English is its chief LINGUA FRANCA and Newspeak its official language, it is not centralized in any way. Its rulers are not held together by blood-ties but by adherence to a common doctrine. It is true that our society is stratified, and very rigidly stratified, on what at first sight appear to be hereditary lines.