美的人都相似！李冰冰为这两个人送上生日祝福

05:45

Social Studies

How to be fearless in the face of authoritarianism - Sviatlana Tsikhanouskaya

Lesson duration 05:45

108,563 Views

05:26

Science & Technology

The asteroid that almost wiped out life on Earth

Lesson duration 05:26

239,483 Views

05:27

Social Studies

What did people do before anesthesia?

Lesson duration 05:27

2,204,175 Views

04:55

The Arts

Test yourself: Can you tell the difference between music and noise?

Lesson duration 04:55

604,614 Views

04:49

Social Studies

6 myths about the Middle Ages that everyone believes

Lesson duration 04:49

2,557,452 Views

06:13

Social Studies

What makes Thomas Jefferson so controversial?

Lesson duration 06:13

585,561 Views

05:33

Social Studies

Why plague doctors wore beaked masks

Lesson duration 05:33

1,947,779 Views

05:11

Literature

The secret formula to Agatha Christie's murder mysteries

Lesson duration 05:11

984,142 Views

05:22

Literature & Language

A brief history of Spanish

Lesson duration 05:22

471,909 Views

04:43

Social Studies

What do dumplings look like around the world?

Lesson duration 04:43

1,072,975 Views

04:59

Social Studies

The biggest mistakes in mapmaking history

Lesson duration 04:59

1,097,628 Views

14:17

Psychology

What it's like to be a parent in a war zone - Aala El-Khani

Lesson duration 14:17

110,336 Views

05:58

Literature & Language

The myth of Loki’s monstrous children

Lesson duration 05:58

2,348,071 Views

05:37

Visual Arts

Why is the Mona Lisa so famous?

Lesson duration 05:37

2,319,067 Views

05:05

Social Studies

How one of the most profitable companies in history rose to power

Lesson duration 05:05

894,158 Views

04:34

Science & Technology

Why do your jeans wear out so quickly?

Lesson duration 04:34

368,323 Views

04:57

Literature & Language

The twins who tricked the Maya gods of death

Lesson duration 04:57

2,087,686 Views

04:35

Social Studies

What happened to the lost Kingdom of Kush?

Lesson duration 04:35

1,065,346 Views

05:26

Literature & Language

The surprising origins of the word “lesbian”

Lesson duration 05:26

780,236 Views

04:32

Social Studies

The forgotten queen of Egypt

Lesson duration 04:32

1,258,275 Views

04:57

Linguistics

What makes a language... a language?

Lesson duration 04:57

815,276 Views

04:55

Business & Economics

Why can’t governments print an unlimited amount of money?

Lesson duration 04:55

998,791 Views

05:34

Science & Technology

The most notorious scientific feud in history

Lesson duration 05:34

1,154,584 Views

05:55

Social Studies

History's deadliest king

Lesson duration 05:55

1,688,774 Views