Why Numbers like : 1 means One & 2 means two...

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 numbers?

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.

The angles are marked  with "o"s.

No 1 has one angle.

No 2 has two angles.

No 3 has three angles.
 
etc.