The development of postal service in Belarus started in ancient times. In Kievan Rus there was a prince's messenger who delivered orders of the prince in various areas of the country. In 1583, Belarus post road introduced a system of tariff which operates today in all countries of the world. In 1793, Belarus became part of the Russian Empire. Belarus used the postage stamps of the Soviet Union from 1917 until 1991. In 1991 Belarus became an independent nation and began its own postal administration in 1992. These stamps valued in roubles which were issued on 31st. of August 1992 showed the State Arm and the National Flag superimposed on the map of the country.