Someday, years from now, when they tell the tale of the swimmer from Rodgers Forge and his eight gold medals, it will be difficult - if not impossible - to know exactly where to begin.

The epic story of Michael Phelps' transcendent Olympics has produced many iconic moments, a diverse selection of did-I-really-just-see-that? mental snapshots.

These Olympics have always been about making history for Phelps, a 23-year-old with a long torso, longer arms and the competitive instincts of a hungry shark.

In eight races - including this morning's 400 medley relay, which earned him his eighth gold medal, breaking the record for a single Olympics held for 36 years by Mark Spitz - he has provided us with memories that do not fade.

He has left fellow swimmers to fight through his wake, and he has nipped them at the wall by margins so thin, the naked eye could not be trusted to record them. He has bear-hugged his teammates and roared with appreciation - arms extended, muscles rippling - at their amazing swims.

Most of all, he has reminded us that it's OK to dream up ridiculous feats as long as you truly believe you can make them reality.

"With so many people saying it couldn't be done, all it took was a little imagination," said Phelps, a product of the North Baltimore Aquatic Club. "It's been such an unbelievable roller coaster. It's been such an unbelievable ride. All I want to do is go see my mom."

Today's medley relay was no coronation. The U.S. all-star lineup of Aaron Piersol, Brendan Hansen, Phelps and Jason Lezak needed one final world record - Phelps' seventh of these games - to secure their teammate's place in history.

The Americans were in third when Phelps dove into the pool, but he gave them a lead they would not surrender.

Lezak held off Australia's Eamon Sullivan over the final 50 meters, touching in 3 minutes, 29.34 seconds. Phelps' relay split was 50.15, the fastest of any of the butterfly legs, and 0.25 faster than the world record.

After the relay victory, Phelps screamed, "I couldn't have done it without you guys," as he hugged his teammates.

He looked elated but exhausted, happy it had finally become real.

Australia finished second (3:30.04) and Japan third (3:31.18).

Olympic history
"An extraordinary chapter in Olympic history has been written here in Beijing by one of the greatest athletes of all time. We could not be more proud of Michael," said U.S. Olympic Committee chairman Peter Ueberroth.

"The fact that his eighth medal was won in a team relay signifies Michael's commitment not only to his own quest, but to the importance of teamwork."

It was, in so many respects, fitting that Lezak's hand was the one on the wall securing the gold and wrapping up Phelps' quest with a team victory.

Although Phelps' accomplishments managed to dwarf all other stories this week - Natalie Coughlin probably won the quietest six medals in the history of the Games - Lezak's remarkable anchor leg of the 400-meter freestyle relay, and the celebration it ignited, will likely be the memory that trumps all others.

"We wanted to do this for all of us, not just Michael," Piersol said. "But as far as whether we'll ever see another like Mike? Mark came around 30-some years ago, but … the term Spitzian feat might be outdated now.

"It might be Phelpsian feat. I think I just coined that phrase."