Huge milestone today: The Dow crossed the 13,000 mark, the first time since before the 2008 financial crisis that it has done so. The last time it made it above that milestone was on May 20, 2008, four months before Lehman Brothers went under. Behind today's bump: the finalized bailout deal for Greece, and strong corporate earnings reports from the likes of Home Depot, reports the AP. (More Dow Jones stories.)