January 20th of 2009 was an important day in American history. The words “change” and “hope” were heard that afternoon in Washington, D.C., as Barack Obama became the 44th President of the United States. Don’t miss a word of his speech!

We take you to the front row of this historical speech. Let’s listen to Barack Obama’s words of wisdom as he becomes the 44th President of the United States of America.

In this historical speech, Barack Obama speaks of the greatness of the multiculturalism of the United States of America, and how it is a tool that will help us overcome all difficulties.

Time makes sense in small pieces. But when you look at huge stretches of time, it’s almost impossible to wrap your head around things. So KURZGESAGT teamed up with the awesome blog WAITBUTWHY and made this video to help you put things in perspective!

Did you know that the T-Rex dinosaur is closer to us in time than to its distant ancestor, the Stegosaurus? Watch this amazing video for the fastest history of the universe ever told!
This video has been a collaboration of KURZGESAGT & WAITBUTWHY!

What does the Holocaust have to do with us, anyway? In part one, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

What does the Holocaust have to do with us, anyway? In part two, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

What does the Holocaust have to do with us, anyway? In part three, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

What does the Holocaust have to do with us, anyway? In part four, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of them all? Alex Gendler explains how linguists group languages into language families, demonstrating how these linguistic trees give us crucial insights into the past.

In 1066, William the Conqueror invaded Britain and brought with him fancy French words to add to the English language.

Though most might be unaware, the US state of California was named after a place that doesn't exist outside of literature, similar to Narnia. "California" comes from a novel written in the Spanish Golden Age.

Many secrets remain surrounding the creation of Stonehenge. Archaeologists try to unravel the mystery.

A humorous look at American English from a British point of view.

Ellis Island, the U.S. gateway to immigration from distant lands, has been reopened to visitors, following significant damage from Hurricane Sandy. A visit there, and to the nearby Statue of Liberty, can be emotional, even for those born in the U.S.

Filmmakers Christina Fon and Stevie Salas are interviewed about Rumble, their documentary exploring how Native American musicians have influenced rock n' roll.

The two filmmakers who created Rumble talk about how Native American musicians like Link Wray were idols in the eyes of famous performers, but totally unknown to the general public.

The filmmakers talk about some of the people they wanted to interview for the documentary. Sometimes it just took time, and in a few cases it didn't work out at all. For Christina, one highlight was getting to interview writer and activist John Trudell before his death in 2015.

Stevie Salas and Christina Fon talk about striking the right balance between entertainment and a political message, and what they hope their film will achieve.

Stevie Salas and Christina Fon discuss what is next for the film Rumble: The Indians Who Rocked the World as it premieres around the world.

Annette talks about the Wild West, and takes us to a famous gold mining town in South Dakota that was an important part of United States history.

Annette visits the Erickson Aircraft Collection in Madras, Oregon. A highlight of the collection is a plane that appeared in a very famous movie.

The Irish Rovers is a Irish-Canadian folk band. Their song "Titanic" is a tribute to the famous RMS Titanic, written on its 100th Anniversary. It tells of the ship’s beginnings and Irish pride, as well as its devastating sinking.

This ancient mathematical trickery posits that a mighty hero cannot overtake a tortoise. Zeno of Elea (born c. 490 BCE) is the author of this and other paradoxes.