Dale Earnhardt started off the decade of the 1990s with a NASCAR premier Series sweep at Talladega Superspeedway, and tossed in a victory in the International Race of Champions (IROC). He came back nine years later and accomplished the same feat. In between, he was masterful as well at the 2.66-mile venue, claiming five more triumphs in various series. The greatest race track in the world celebrates its 50th anniversary this year.