The issue of secularization became a "Bermuda triangle" of debates concerning the origin and development of modernity. In some theories, the concept which originated within the sphere of canon law, has grown to the rank of the main historiosophic category which establishes the order of the times. In its semantic, though not phonic translatio, it has undergone a transformation from its Roman original, through the narrow semantic scope in the 16th c., denoting "transition" from the clerical to the lay state, through the 17th c. broadening of the meaning to denote the transfer of church property to the state, up to the 19th c. "description" of the historical transition between the Middle Ages and the Modern era. The present article tries to in...