The History of Arabic Numerals
13:01
The Change from Roman Numerals - Numberphile
16:27
Why the number 0 was banned for 1500 years
10:32
The 7 Forgotten Letters of the Alphabet
10:48
The Strangest Mathematician in History
3:22
Why does the west use Arabic Numerals? (Short Animated Documentary)
16:15
THE ALPHABET EXPLAINED: The origin of every letter
15:29
How Far Back in Time Could an English Speaker Go and Still Communicate Effectively?
31:33