Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
New Videos

Britannica Explains

Ramadan begins with the waxing crescent moon.

Watch more

Why Ramadan is one of the holiest months for Muslims

You Asked, We Answered

Two halves of the human brain are separated with arrows pointing to each half and a question mark in the center.
Can you really be left-brained or right-brained?
The video thumbnail image shows a graphic of the Earth with two tidal bulges. Blue arrows point to the bulges against a white background.
How does the Moon affect the tides?
The word semiquincentennial appears in white text on a blue background.
What do you call the 250th anniversary of the United States?
Why don't humans have tails?
Why don't humans have tails?
How are birds and dinosaurs related?
How are birds and dinosaurs related?
What is a certificate of deposit?
What is a certificate of deposit?

Wet And Wild

The video thumbnail image shows a black and white bridge over blue water. Blue arrows show that the flow of the water was switched from one direction to the other.
Why the Chicago River was reversed
The video thumbnail image shows two hands holding zebra and quagga mussels, superimposed above a clear body of water. White question marks appear in the upper left corner.
How invasive mussels threaten the Great Lakes
Two illustrated divers are superimposed onto a photograph showing a lake underwater.
The science behind spooky lakes
Video thumbnail image shows a large amount of plastic trash collected from the ocean.
How to clean up Earth's oceans
Gitanjali Rao explains the fight for clean drinking water
Gitanjali Rao explains the fight for clean drinking water
A white woman in blurry focus holds up a small piece of plastic called a nurdle, highlighted with a blue circle.
Marine debris: How trash ends up in the ocean

New on Britannica

Sepia-toned map of Greenland, with the label "Greenland" highlighted in blue.
Who governs Greenland?
A bald eagle on a white column with a blue ribbon labeled "national bird," against a faded U.S. map background.
Why is the bald eagle the U.S. national bird?
A factory with smokestacks emitting green-patterned smoke. The text above reads, "What is greenwashing?" in bold black letters.
What is greenwashing?
A collage featuring four colonial-era European figures in military and formal attire, a yellow map of Africa, and a vintage cartoon of imperialism in the background.
What was the Scramble for Africa?
Gloved hands draw liquid from a vial into a syringe, overlaid on a digitally colored microscopic image of a virus with round particles in clusters.
How we develop new vaccines
Buster Keaton sitting on the floor with a film camera on top of him, as if the camera fell on Keaton.
The greatest stunts of Buster Keaton
Leonardo DiCaprio as Jay Gatsby raises a champagne glass, with "The Great Gatsby" book cover superimposed and an arrow pointing to it.
The Great Gatsby: From flop to Great American Novel
Black-and-white photo of a man in a suit plugging his ears with his fingers. An orange polka dot pattern is behind his head.
Why do we have earwax?
A bronze bust of an Indigenous American figure sits in a kitchen, overlaid with sacks of rice marked with a green check and milk with sugar cubes crossed out.
Bringing back Indigenous foods with Chef Sean Sherman
Two reenactors and an illustration of a Black soldier from the First Rhode Island Regiment stand against a background of historical handwritten text.
The first Black battalion of the American Revolution
The word semiquincentennial appears in white text on a blue background.
What do you call the 250th anniversary of the United States?
The video thumbnail image shows two hands holding zebra and quagga mussels, superimposed above a clear body of water. White question marks appear in the upper left corner.
How invasive mussels threaten the Great Lakes

Original Series

Series thumbnail for Britannica Explains video series.
Britannica Explains
Whatever your question, Britannica has the answer.
Demystified series logo for video portal.
Demystified
Science, art, history, and culture—demystified.
Britannica Money video portal logo.
B-Money Smart
Want to become a smarter investor, saver, and spender? Britannica Money breaks down the complex world of finance.
Britannica zodiac video series image logo, for use on video portal only.
Behind the Zodiac
What’s really written in the stars?
Series thumbnail for Britannica Classics videos.
Britannica Classics
Check out these retro videos from Encyclopedia Britannica’s archives.
A lilac British cat looking up. The cat opened his mouth with a mad look. The concept of an animal that is surprised or amazed.
#WTFact Videos
In #WTFact Britannica shares some of the most bizarre facts we can find.
Time running, deadline, life time or business milestone concept, closed up vintage pocket watch or clock on book in vintage tone
This Time in History
In these videos, find out what happened this month (or any month!) in history.

Videos By Category

Entertainment & Pop Culture

Entertainment & Pop Culture
Geography & Travel

Geography & Travel
Health & Medicine

Health & Medicine
Lifestyles & Social Issues

Lifestyles & Social Issues
Literature

Literature
Philosophy & Religion

Philosophy & Religion
Politics, Law & Government

Politics, Law & Government
Science

Science
Sports & Recreation

Sports & Recreation
Technology

Technology
Visual Arts

Visual Arts
World History

World History