Coach Clive Woodward hailed his players as his England side emphatically rid themselves of the tag of under-achievers against Ireland.
After so often failing at the final hurdle, England's 42-6 win secured their first Grand Slam in eight years.
And Woodward said he was delighted by how his charges reacted to the stress of the occasion.
"We have put a lot of pressure on ourselves all week," he said.
"I can't say how good these guys are. They are the toughest guys I have ever worked with, physically and mentally
"I was confident we were going to win, if we held on to the ball. Ireland are a good team but I am delighted with the outcome.
"The players deserve this big time. I'm lucky to be leading them."
Lawrence Dallaglio, who had to watch from the stands as England's Grand Slam dream died at Lansdowne Road in 2001, said this was a very different experience.
"It's been a long time coming. We have let a few people down in the past," he said.
"I think we have stuttered and spluttered a bit in this championship, but we have finished with our best performance of the season.
"Two years ago, I was up in the stands, so it's nice to be part of this."
England captain Martin Johnson praised Ireland's endeavour, but said he felt the victory was deserved.
"We have had our disappointments over the years," he said.
"It's a credit to our players and coaches. But we have finally got it. They made lots half breaks but we managed to stop them scoring.