Answering the topic " Why ? by Diana ' Sorry because i couldn't send more than 1000 caracters to respond on the previous topic so here is the integral version :
Hi everyBody good topic ,
        I Agree you Diana but the problem is the same with : why we are too many nations? why not only one ? one president , one nation , one god , one religion , one flag , .......... etc.
who is ready to give up his own language ,culture , religion , traditions, history .....
I'll give you an exemple for language , if we should select a universal language what would it be ? english ? if yes, why ?

and if u think that u are the first one who asked this question u'r wrong   it's a very old story :
this is not new idea it dates to 1887 and the  language IS  :
" Esperantois by far the most widely spoken constructed international auxiliary language in the world.ts name derives from Doktoro Esperanto, the pseudonym under which L. L. Zamenhof published the first book detailing Esperanto, the Unua Libro, in 1887. The word esperanto means 'one who hopes' in the language itself. Zamenhof's goal was to create an easy and flexible language that would serve as a universal second language to foster peace and international " understanding." From Wikipedia .

and here is the original link :

http://en.wikipedia.org/wiki/Esperanto


and more :this is the list of the 7 most popular languages  by number of native speakers ( classified by wikipedia) :

1- Mandarin : 873,000,000
2-Hindi :366,000,000
3 -Spanish :358,000,000
4-English :341,000,000
5-Arabic : 206,000,000
6-Portuguese :177,500,000
7-Bengali :171,000,000

and go on ..............
for more information here is the link :

http://en.wikipedia.org/wiki/List_of_languages_by_number_of_native_speakers

So which one we will choose ? I guess  I have the answer which is : ARABIC because .............................................
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........................................................................................................ It's my language

Finally , thanks Again for the topic !!!