The very first season National League hurlers could measure themselves up against American League pitchers -- the 1901 campaign -- the claimant for the lowest ERA among both the leagues' qualifiers was none other than Cy Young, who posted a 1.62 mark for the Boston team in the AL. Over a century later, Dodgers southpaw Clayton Kershaw is slowly cementing his status among some of the game's all-time great hurlers.