scishow history

1:30

3:46

3:57

2:11

4:30

5:48

10:53

8:39

11:17

4:15

10:50

4:21

20:15

4:33

3:58

4:28

3:21

4:01

4:10

9:26

9:37

4:13

8:38

4:02

17:46

19:32

3:10

3:55

4:13

4:39

4:46

5:56

8:46

3:09

21:56

17:52

14:49

17:45

5:33

2:19:38