In observance of Martin Luther King Day in 2010, Ray Suarez speaks with historian Peniel Joseph about his book "Dark Days, Bright Nights: From Black Power to Barack Obama."

Rahm Emanuel has served as a top adviser to Presidents Clinton and Obama, a three-term congressman from Illinois and a two-term mayor of Chicago. But in his new book, “The Nation City,” the longtime Democrat argues that mayors are...

Sharp black-white divide on perceptions of Ferguson

Nate Silver has data that answers big questions about race in politics. For instance, in the 2008 presidential race, did Obama's skin color actually keep him from getting votes in some parts of the country? Stats and myths collide in...

Jonathan Harris wants to make sense of the emotional world of the Web. With deep compassion for the human condition, his projects troll the Internet to find out what we're all feeling and looking for.

In which John Green teaches you about recent history. By which we mean VERY recent history. John covers the end of George W. Bush's administration presidency of Barack Obama (so far). Some people would say, "It's too soon to try to...

Barack Obama was the first Black man elected President in the United States in 2008. In this episode, Clint Smith will explore the early life, political career, presidential campaign, and legislative milestones of Barack Obama.

The largest wind farm in the world is being constructed in China's Gansu Province, and is one of six mega-farms going up across the country.

Why Senator Bernie Sanders lost the nomination to Hillary Clinton.

The life and career of Bernie Sanders, the independent US Senator from Vermont who is running for the Democratic Party's 2016 presidential nomination against Hillary Clinton.

Dictators are overthrown in part 6 of our epic journey through the revolutions that set the power dynamics of our modern civilization.

As Trump begins his presidency, this a data-driven look at how the American people view the world, including what they think are major threats.

By nearly every metric, Donald Trump's vision is wrong, the United States of America is already great. This data-driven analysis shows why.

China is building the world's largest airport, the Beijing Daxing International Aiport, to serve the Jing-Jin-Ji megalopolis.

An examination of President Barack Obama's achievements over his two terms in office.

China is building the world’s longest underwater tunnel beneath the Bohai Sea--at 76 miles long it will pass through two deadly earthquake fault zones, will be longer than the current first and second-ranked underwater tunnels combined...

A quick look at the electoral results and circumstances of every US presidential election since 1964.

The story of the GOP, from Abraham Lincoln to Donald Trump.

China's high speed rail network is already larger than all other countries' combined--and it's only half complete.

Every mass shooting (4+ people shot) in the United States in 2015, mapped.

The Roman Kingdom falls and a Republic is born--Part 1 of history's greatest revolutions that created our modern civilization.

Iran becomes an Islamic Republic as Ayatollah Khomeini seizes power to become Supreme Leader. Part 5 of our journey through history's greatest revolutions--the moments that shaped modern civilization.

These are the top 10 countries threatened by the 6 meter sea level rise we are almost guaranteed to see in the not-too-distant future, according to the projected pace of global warming and ice melt in Greenland and Antarctica.

The many lies and truths told by Donald Trump and Hillary Clinton in the first 2016 U.S. presidential debate.