Alphabets

Has anyone ever given a thought? What sense these alphabets make.? From where did they originate? Do these letter really mean something,individually? Or these are mere signs? Is there any logic beside its origination? Why is it that '/'and '\', separated by a dash '-', together makes 'A'? Why do we call, The combination of '|' and '3' as 'B'? Why is it that vertical semicircle is termed as 'C'? Is there's any history, any story about these alphabets? Why is the combo of '|', Followed by 3 dashes is 'E'; Where as it 2 then its 'F'? What if a kid asks his teacher- "why a single line is 'I', two such lines,separated by a '-' is being called as 'H'? Whereas, when '_', follows the single line, it is known as'L'?" What would the teacher say? How will she explain? . How is it that '|' and '|', when separated by '^' is 'W'; Whereas, its invertible is 'M'? Do they narrate any story; about their existence? A circle is 'O'; Whereas, just a line, Converts it into 'Q'? Its so messy, very confusing; lines and signs turning to alphabets! A snake like letter is 'S', Whereas combination of some lines; builds a letter 'Z'? Can anyone please explain???