Professional football has been in Seattle since 1976. During that time the Seahawks have won one Super Bowl and been to two others. Since 2003, Seattle has been to the playoffs 11 times and missed the postseason just four times. (Sadly, one of those times was last year.)
Also, feel free to yell at me (not vocally, of course – just tweet at me or whatever) if you think I am wrong about these lists you are about to see. There will be more jersey-best posts coming, you know. Because I could be wrong most of who goes with what number.