 
 <translate> Context: The first Zimbabwean dollar was introduced in 1980 and replaced the Rhodesian dollar at par. The initial ISO 4217 code was ZWD. At the time of its introduction, the Zimbabwean dollar was worth more than the US dollar in the official exchange market, with 1 ZWD = 1.47 USD, although this did not reflect the actual purchasing power it held. As a result, in both the official and parallel markets, the currency's value eroded rapidly over the years, and by July 2006, the parallel market value of the Zimbabwean dollar fell to Z $1,000,000 = GB £ 1.

Question: when did the currencies of zimbabwe first come in circulation?
Steam of consciousness below:
 <ibo> Ihe gbara ya gburugburu: E webatara dollar Zimbabwe mbụ n'afọ 1980 wee dochie dollar Rhodesia na par. Koodu ISO 4217 mbụ bụ ZWD. N'oge e webatara ya, dollar Zimbabwe bara uru karịa dollar US n'ahịa mgbanwe gọọmentị, na 1 ZWD = 1.47 USD, ọ bụ ezie na nke a egosighi ikike ịzụta ihe ọ nwere. N'ihi nke a, n'ahịa gọọmentị na nke dị n'akụkụ, uru ego ahụ dara ngwa ngwa n'ime afọ ndị ahụ, na July 2006, uru ahịa dị n'akụkụ nke dollar Zimbabwe dara na Z $ 1,000,000 = GB £ 1.  Ajụjụ: kedụ mgbe mbụ ego mba Zimbabwe bidoro ịgba? Steam nke ịmara n'okpuru: 