The book traces the evolution of languages in the history of mankind and describes many hypotheses regarding when, where, why, and how human languages emerged. The distinct features of the book are the description of origin and evolution of languages; primate language; importance of Broca and Wernicke portions of the Neocortex in the brain; theories of human language development; primary characteristics of human language; communication system in animals; animal intelligence; ancient languages and their scripts; living and extinguished languages and their scripts; modern languages; introduction to Indo-European and Indo-Dravidian languages; and the development of writing system and writing material.