Question: When did the first 1 coin come out?
Answer: on 21 April 1983
Disambiguated annotations:
qaPairs: question: When did the first British one pound coin come out?
answer: 21 April 1983
question: When did the first United States dollar coin come out?
answer: 1794
question: When did the first 1-yen coin come out in Japan?
answer: 1870
question: When did the first 1-euro coin come out?
answer: 2002
question: When did the first Australian one dollar coin come out?
answer: 14 May 1984