The numbers we all use (1, 2, 3, 4, etc.) are known as "Arabic " numbers to
distinguish them from the "Roman Numerals" (I, II, III, IV, V, VI, etc). Actually
the arabs popularized these numbers but they were originally used by the early
phonecian traders to count and keep track of their trading accounts.
Have you ever thought why ........ 1 means "one", and 2 means "two"? The roman
numerals are easy to understand but what was the logic behind the phonecian
It's all about angles !
It's the number of angles. If one writes the numbers down (see below) on a piece
of paper in their older forms, one quickly sees why. I have marked the angles with
No 1 has one angle.
No 2 has two angles.
No 3 has three angles.
and "O" has no angles