We've heard a lot about 1998 in the time since Mark McGwire admitted using performance-enhancing drugs during much of his career. Thankfully, unless you have a penchant for Celine Dion and Savage Garden ballads, we haven't heard much from 1998.
That was the year, of course, when McGwire broke Roger Maris' single-season home run record, a sports record so famous and so cherished that Billy Crystal made a movie about it. (We're still waiting for the movie about Peyton Manning's record quarterback rating.) Barry Bonds eventually wrested the record from McGwire's chemically-enhanced grip, but somehow 73 doesn't seem like it's going to have quite as much cultural significance as 61.
So what single-season marks do still matter in baseball? Ted Williams' .406 batting average in 1941 isn't a record, but would a player chasing .400 for the first time since then be the biggest story? What about a pitcher chasing 30 wins or a hitter challenging Hack Wilson's RBIs record?