Same thing Wikipedia does. But on YouTube. As exciting as the reference section of your local disused library.
39 videos
History
YOUTUBEPEDIA
259 videos
Everything
29 videos
Culture
7 videos
Materials
33 videos
Nature
10 videos
Folklore / Mythology
60 videos
Food
24 videos
Language
21 videos
Places
36 videos
Miscellaneous
17 videos
Animals
18 videos
Plants
26 videos
Weird stuff
46 videos
Products
2 videos
Cheat Sheets
25 videos
Science
3 videos
Beauty
Human Body
11 videos
Architecture
8 videos
Psychology
4 videos
The Arts
5 videos
Biography
16 videos
Engineering
-1 video
Physics
Business
Philosophy