 
 <translate> The relevant sentence in the passage is: The first Zimbabwean dollar was introduced in 1980 and replaced the Rhodesian dollar at par.
So, the answer is 1980. <ibo> Ahịrịokwu dị mkpa dị n'akụkụ Akwụkwọ Nsọ ahụ bụ: E webatara dollar mbụ nke Zimbabwe na 1980 ma dochie dollar Rhodesia na par. Ya mere, azịza ya bụ 1980. 