On THIS IS AMERICA: Barack Obama becomes the 44th president of the United States on Tuesday. A look at notable ceremonies and speeches from the past.
Bush Looks Back at Eight Years as President, and Wishes Obama Well
On IN THE NEWS: "There are things I would do differently if given the chance. Yet I have always acted with the best interests of our country in mind."
Getting to Know the New First Family
Also on AMERICAN MOSAIC: A question from Japan about Martin Luther King Junior. And music by some of the performers set to appear at Barack Obama's inauguration.
Milky Way Is a Lot Bigger Than Scientists Thought
Also on SCIENCE IN THE NEWS: A study offers evidence that one or more comets were responsible for a sudden cooling period on Earth 13,000 years ago.
Marian Anderson, 1897-1993: Her Voice Became Famous Around the World
On PEOPLE IN AMERICA: Anderson performed African-American spirituals and classical music. But she found success in Europe before she was accepted in her own country. First of two parts.
Touching All Bases: Baseball Rules!
Some terms that come from the American pastime.
Economic Crisis Hits Exports
On ECONOMICS REPORT: World trade is expected to decrease by 2 percent this year as demand collapses.
American History Series: The Rise of the Movement Against Slavery
On THE MAKING OF A NATION: The 1830s saw the birth of anti-slavery societies in New York and New England.
Foreign Student Series: Answering Your Questions
On EDUCATION REPORT: In part 17, we answer questions about American higher education and about learning English.
Wising Up About Wisdom Teeth
On HEALTH REPORT: If removal is advised, experts say the best time to do it is before the teeth begin to cause problems.
Robert Edison Fulton Rode Around the World on a Motorcycle
On EXPLORATIONS: He traveled more than 40,000 kilometers through 22 countries in 1933. He later designed an airplane that was also a car.