I just recently discovered a trivia website, Sporcle.com, it's filled with trivia from movie taglines to state capitals, and there's one particular test, name the Orioles' opening day roster from 1990 to this year. The starting 9 and the starting pitcher, I got 115 out of 200, not bad considering I only remember the line-ups from 2005-2009. So have at it, and post your score.
http://www.sporcle.com/games/tk926/orioles_lineups
NOTE FROM STACEY: If you're going to play I suggest you do so before reading the comments since a number of answers are listed there.