"Tonight," he told them, "all your demands will be met. Everything you have said will come true." The crowd went wild, and they stayed that way all day and all night waiting for Mubarak to tell them that he was leaving. Wael Ghonim, the young Google executive who was jailed for helping to organize the protests online, was overjoyed as he made his way into the square.
GHONIM: It's a dream come true. You know, the dream became true. And, you know, whatever we have been fighting for since the 25th of January is now being realized. And it happened.
AMANPOUR: Back in the United States, President Obama also sounded confident that the end was near.
OBAMA: We are witnessing history unfold. It's a moment of transformation that's taking place because the people of Egypt are calling for change.
AMANPOUR: Testifying on Capitol Hill, the CIA director echoed news reports that Mubarak would announce his resignation.
PANETTA: I got the same information you did, that there's a strong likelihood that Mubarak may step down this evening.
AMANPOUR: So late into the night, the crowd in Tahrir Square was already celebrating moments before President Mubarak made that speech to the nation. But afterwards, they were stunned. Mubarak told them that he would transfer constitutional powers to his hand-picked vice president, Omar Suleiman, but he did not say he was leaving yet.
Tahrir Square answered him in a furious roar. "No, leave, leave," they shouted.
(UNKNOWN): We are here until he go!
AMANPOUR: Yet again, the mood had changed. Uncertainty reigned.
(UNKNOWN): It's not tomorrow morning early. It's to be announced that he is out and the -- and the country is -- is clean from him. No one can imagine and no one can say what could happen in this country.
AMANPOUR: But the people stayed peaceful, as they had throughout this, filing back into the square Friday morning, streaming past the tanks, making their way into Tahrir. And it was there that they heard the news that they had been waiting for that changed everything once again.
In a terse message lasting less than one minute, Vice President Suleiman came on state television to tell them that the president had stepped down and handed over control to the military.
"Egypt is free," they cried.
(UNKNOWN): We've been here every single day. And today we brought our son to see this historic moment. He will read about this in books when he grows up.
AMANPOUR: History was being made as the world watched.
OBAMA: The word "Tahrir" means "liberation." It is a word that speaks to that something in our souls that cries out for freedom. And forevermore, it will remind us of the Egyptian people, of what they did, of the things that they stood for, and how they changed their country and, in doing so, changed the world.
AMANPOUR: Today, it's clear that the Egyptian people have changed their world and also themselves, but what that change will look like inside their country and across the Arab world remains an unanswered question.
AMANPOUR: And my colleague, ABC "Nightline" anchor Terry Moran, has been there all this last week, including Friday, when the revolution was won by the people. And he joins us now from Cairo.
Terry, what is the latest?