The Ravens have been one of the more successful franchises since their inception, having qualified for the NFL playoffs twelve times since 2000, with two Super Bowl championship titles (Super Bowl XXXV and Super Bowl XLVII), two AFC Championship titles (2000 and 2012), 15 playoff victories, four AFC Championship game appearances (2000, 2008, 2011 and 2012), six AFC North division titles (2003, 2006, 2011, 2012, 2018, and 2019), and are currently the only team in the NFL to hold a perfect record in multiple Super Bowl appearances. The Ravens organization was led by general manager Ozzie Newsome from 1996 until his retirement following the 2018 season, and has had three head coaches: Ted Marchibroda, Brian Billick, and since 2008, John Harbaugh. Starting with a record-breaking defensive performance in their 2000 season, the Ravens have established a reputation for strong defensive play throughout team history, featuring Hall of Fame players like middle linebacker Ray Lewis and safety Ed Reed as well as Pro Bowl players like defensive end Terrell Suggs and defensive tackle Haloti Ngata. The team is owned by Steve Bisciotti and valued at $2. 59 billion, making the Ravens the 29th-most valuable sports franchise in the world.