Question: When did the first call of duty come out?
Answer: 2003
Disambiguated annotations:
qaPairs: question: When did the first call of duty come out in Microsoft Windows NA?
answer: October 29, 2003
question: When did the first call of duty come out in Microsoft Windows EU?
answer: November 7, 2003
question: When did the first call of duty come out in Mac OS X?
answer: May 2004
question: When did the first call of duty come out in N-Gage EU?
answer: November 10, 2004
question: When did the first call of duty come out in N-Gage NA?
answer: November 23, 2004