Greek drachma became Greece's sole currency. Between 1917 and 1920, the Greek government issued paper money in denominations of 10 lepta, 50 lepta, 1 drachma, 2 drachmae, and 5 drachmae. The National Bank of Greece introduced 1000-drachma notes in 1901, and the Bank of Greece introduced 5000-drachma notes in 1928. The Greek government again issued notes between 1940 and 1944, in denominations ranging from 50 lepta to 20 drachmae. In 1922, the Greek government issued a forced loan in order to finance the budget deficit. On April 1, 1922, the government decreed that half of all bank notes had to be surrendered
World currency unit World currency unit There are two different types of World Currency Unit in use today that have different origins and usages. The WCU was proposed by Lok Sang Ho of Lingnan University, Hong Kong. The WCU was first intended to be the basis for denominating global bonds, a debt instrument that is issued globally and is subscribable by people and institutions around the world. Simply put, it is a GDP-weighted basket of key currencies each of which is indexed against inflation for the relevant countries. The WCU is defined with respect to a base year, so that each unit represents