They have been taking place for thousands of years. However, one change in the field of government during the 20th century is especially significant.
हा बदल कोणता आहे आणि तुमच्यावर व्यक्‍तिगतपणे त्याचा कसा परिणाम होतो याची आपण नंतर चर्चा करू या.