The Vietnamese dong , popularly known as Uncle Ho cash, was first introduced in 1945-6 with exactly the same value as the older French Indochinese piaster that it replaced. Rapid inflation caused it to become revalued in 1951 and in 1958 it was again adjusted to 1000 to the piaster.
A further large reduction of value happened over the war years and in 1978, a new unified dong was made. In 1985 the present Vietnamese dong was introduced. It's worth against major foreign currencies fell quickly until reforms in 1991 stabilized the rate at about 11,000 dong to the dollar.
It then dropped quicker again in 1996-99 and in 2008-12, to achieve more than 22,000 into the dollar in 2015. If you are looking to buy Vietnamese dong for future investment you can simply visit https://www.dinarinc.com/intro-to-the or similar websites.
Therefore the Vietnamese dong in 2015 is worth less than half of the value of their Ghanaian cedi in 2007 when the new cedi was released at 10,000 times its old price. Since 2005, the dong has collaborated using the Zimbabwean dollar and the Iranian dinar because of its distinction of becoming the world's least valued unit of money.
Vietnam has undergone a lower average rate of inflation over the past two decades, about 7 percent per annum compared to around17 percentage in Ghana, therefore Vietnam might be in the ideal place yet to keep the value of Uncle Ho money.