The Dow Jones Industrial Average started the day off with a major new milestone, reports the AP, crossing the 25,000 mark for the first time. Should it close above 25,000 on Thursday, it will mark the quickest 1,000-point gain in the index's history, reports the Wall Street Journal; it hit 24,000 just five weeks ago. The Dow saw five such milestones last year. It is trading at 25,036 as of this writing. (More Dow Jones stories.)