The Zimbabwe dollar is the monetary unit of the state of Zimbabwe, which existed from April 15, 1981 to June 30, 2009; was introduced instead of the previously circulated Rhodesian dollar, the exchange of banknotes was carried out in a 1:1 ratio. One Zimbabwean dollar is formally equal to 100 cents. However, due to strong inflation, on April 12, 2009, it became known about the ban on the circulation of the Zimbabwe dollar. Instead, residents of the country began to use US dollars, British pounds, as well as the currencies of neighboring countries with more stable economies. In 2009, Gideon Gono, director of the Reserve Bank of Zimbabwe, won the Ig Nobel Prize for mathematics: in the face of galloping hyperinflation, he forced the entire population of his country to learn mathematics by issuing banknotes in denominations ranging from 1 cent up to 100 trillion Zimbabwean dollars.
The first coins, in denominations of 1, 5, 10, 20, 50 cents and 1 dollar, were issued in 1980. The 1-cent coin was minted from bronze, and the rest were minted from a copper-nickel alloy. Since 1989, 1 cent coins have been minted from bronze-clad steel. In 1997, a $2 coin was issued. In 2001 - 5 dollars, and coins of 10, 20, 50 cents and 1 dollar began to be minted from nickel-clad steel.
