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With Saturday's home run, Dunn becomes the 123rd major leaguer to accomplish the feat - and, at just 29, the 11th youngest. Dunn is only the 13th player to do it before turning 30 and the fifth player to reach 300 home runs in less than 4,200 at-bats.

"The fact that this guy is still only 29 years old says a lot about him. That's a lot of home runs for a 29 year old, so we're happy to have him here," said Manny Acta after the game.

The home run came on a 2-2 fastball from rookie Braves pitcher Tommy Hanson.

"It was just over the plate. It was supposed to be a fastball inside and I left it over the plate. And he let me know," Hanson said. The mistake broke Hanson's 26 scoreless inning streak. "We made a mistake. He hit it out. What can you say about it?," said Braves manager Bobby Cox.

Dunn had plenty to say about it - but only because it came with a win for his struggling team. The win and the crowd made it meaningful.

"It would have been very hard to talk about - because it would have been a useless home run...if we would not have won that game. I think that what made it special, like I said, I can't get over the fans. I don't know if you all noticed. We actually noticed and it was incredible, man. It was awesome...I really think, if fans can have any impact on a game, I think they did today."

Dunn's rare combination of talent, work ethic and pure power will certainly make him a leading candidate to break many of Major League Baseball's historic milestones in coming years.

"There's a lot of things that have to go right. You have to stay healthy. You've gotta be very productive for a long time," Dunn added.

After the game, the historic ball sat in Dunn's locker. It cost him an autographed jersey and a handful of balls, as well as a promise to occasionally deliver game tickets to Col. William Sanders, the lucky military man that caught the historic blast. "He was just a classy person. I couldn't have hit it to a better guy," Dunn said after arranging the swap.

Securing the historic baseball was one of the only indications that Dunn had really savored the moment. He was flattered by the ovation and video montage, but mostly seemed thrilled just to get a win in the books. "I would give back every single home run, if we could be whatever our record is flip-flopped. Winning is everything in this game," said Dunn.

"He's not one to get too excited about things," said teammate Ryan Zimmerman. "To hit one home run in the big leagues is nice. To hit 300, I think, shows you what a talent he is and obviously how hard he works and how hard he plays the game," Zimmerman added.