Crowd Swarms National Mall for Obama's Inauguration
In inaugural address, Obama calls on all Americans to a "new era of responsibility."
Inauguration Kicks Off with Star-Studded Event at Lincoln Memorial
Obama kicks off inauguration with speech at Lincoln Memorial: "Anything is possible in America."
Watch: Jan. 20, 1961: Kennedy's Inauguration Speech
John F. Kennedy gives his inaugural address.
Watch: The History of Inaugurations
Many traditions haven't changed since George Washington took the oath.
Watch: Dancing With the Presidents
A look at how past presidents have faired on the dance floor.
Watch: Barbara's Presidential Interviews
Walters interviews Nixon, Obama and everyone in between.
Watch: Obama's Journey to Presidency
A look back at the events and people that help shaped the 44th president.
Watch: Michelle Obama on Maintaining 'Normalcy'
Mrs. Obama tells Bob Woodruff it's "surreal" to be the first lady.
Watch: Dancing the Night Away
The first couple danced at 10 official balls.
Watch: Joe Biden: 'I Can't Dance'
The vice president downplays his dancing skills at the inaugural balls.
Watch: Sasha Gives Her Dad Thumbs Up
Sasha Obama gives her father the thumbs up after he is sworn in as president.
Watch: JuJu Juggles the Red Carpet
Celebrities share their excitement over the inaugural balls.
Watch: EXCLUSIVE: Obama's First Interview
The president talks to ABC's Robin Roberts about the error at inauguration.
Watch: President Obama Walks the Parade Route
The Obamas walk along Pennsylvania avenue.
Watch: President Obama's First Chat
In exclusive interview, Obama talks about his first hours as President.
Watch: A Night of Celebration
A backstage look as the first family celebrates a day to remember.
Watch: The First Couple's First Dance
President Obama and the first lady dance to the singing of Beyonce Knowles.
Watch: Transition of Power: Behind the Scenes
There was a flurry of activity behind the scenes of the swearing-in ceremony.
Watch: Obama Speaks at Neighborhood Ball
The new president praised the strength of communities at the start of the dance.
Watch: Juju Shares Her Inaugural Observations
Juju Chang talks with Charlie Gibson about tapping into the digital realm.
Watch: Sen. Ted Kennedy Leaves on a Stretcher
Health scare forces the Mass. senator to leave congressional luncheon. NO AUDIO
Watch: Jackson Calls Inauguration a 'Seminal Moment'
Civil rights leader Jesse Jackson says to many Jan. 20 represents "redemption."
Watch: Brazile 'Steals' Obama's Blanket
ABC News' Charlie Gibson grants Donna Brazile "a blanket pardon" for her act.
Watch: Powell on Obama: 'I Was Tearing Up'
Colin Powell, moved by the ceremony says, "I think I am still a Republican."
Watch: Crowd Roars for Hil and Bill
Former presidents arrive at the inaugural ceremony and join in the celebrations.
Watch: Top Video of '09: Did Jimmy Carter Snub the Clintons?
Frosty Relations? Former presidents appear to avoid one another.
Watch: Sarah Silverman's Tribute to Bush
The comedian looks at the bright side of Bush's eight-year presidency.
Watch: No Inaugural Love for Obama Girl?
Obama Girl visits Washington to be a part of Obama's Inauguration Day.
Watch: Spike Lee: This is a 'Celebration'
Filmmaker Spike Lee and his wife say they feel the presence of their ancestors.
Watch: Aretha Franklin's Inaugural Song
The singer performs "My Country, 'Tis of Thee."
Watch: The New First Lady
The Washington Post's Liz Mundy discusses Michelle Obama.
Watch: The Obamas and Bushes Meet for Coffee
The president and first lady host the future first couple at the White House.
Watch: Obama Faces Domestic, Foreign Issues
ABC's Martha Raddatz and Betsy Stark weigh in on administration's challenges.
Watch: Tears and Cheers at Viewing Parties
From Times Square to classrooms - the inauguration was broadcast everywhere.
Watch: 28-Second Tradition
The face of America transformed as Barack Obama to recited the oath.
Watch: Millions Crowd the Mall
An estimated 1.9 million people packed the streets of D.C. to witness history.
Watch: Kenya: From Heritage to History
Obama's father's country celebrates America's first black president.