Question: When was percy jackson and the lightning thief published?
qaPairs: question: When was percy jackson and the lightning thief first published as a hardcover?
answer: July 1, 2005
question: When was percy jackson and the lightning thief first published as a paperback?
answer: April 1, 2006
question: When was percy jackson and the lightning thief published in French, German, and Spanish?
answer: 2006
question: When was percy jackson and the lightning thief published in Chinese, Italian, Turkish, Danish, Croatian, Czech, Finnish, Dutch, Hebrew, Portuguese, Brazilian Portuguese, Polish, Indonesian, Serbian, Norwegian, and Catalan?
answer: 2008
question: When was percy jackson and the lightning thief published in Icelandic?
answer: 2012