 <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:
 <yor> Àyíká: A ṣe owó Zimbabwe àkọ́kọ́ ní 1980 ó sì rọ́pò owó Rhodesia ní iye kan náà. Koodu ISO 4217 akọkọ jẹ ZWD. Ní àkókò tí wọ́n dá dólar Zimbabwe sílẹ̀, owó rẹ̀ ju owó dọ́là Amẹ́ríkà lọ ní ọjà tí wọ́n ti ń ṣòwò owó, tí 1 ZWD = 1.47 USD, bó tilẹ̀ jẹ́ pé èyí kò fi agbára ìrajà gidi tí wọ́n ní hàn. Nípa bẹ́ẹ̀, nínú àwọn ọjà tí wọ́n ń lò àti àwọn ọjà tí wọ́n ń lò pẹ̀lú wọn, iye owó tí wọ́n ń lò ti yára dínkù láti àwọn ọdún wọ̀nyí wá, àti ní July 2006, iye owó tí wọ́n ń lò pẹ̀lú dólà Zimbabwe ti dínkù sí Z $1,000,000 = GB £1.  Ìbéèrè: ìgbà wo ni àwọn owó ilẹ̀ Zimbabwe bẹ̀rẹ̀ sí í lò? Ìrì ìmọ̀lára ní ìsàlẹ̀: 