Question: What were the 2 longest blackouts before 2005?
Answer: The 2 longest blackouts before 2005 were the 1999 Southern Brazil blackout in Brazil, which lasted from 11 March 1999 to 22 June 1999, and the Northeast blackout of 2003 in the United States and Canada, which lasted from 14 August 2003 to 16 August 2003.