5 Surprising Facts About The Orioles

5 Surprising Facts About The Orioles. While the Orioles, to some people, still feel like a team that entered the league in the 1990s (thanks to Camden Yards), they are actually among the oldest franchise in Major League Baseball. For more than a century, the Orioles have experienced the highest of highs and the lowest of lows, with a lot of surprises along the way.