Can you tell me which language was the spoken in the beginning of the world?

Human language has been around for more than 100,000 years. There probably never was only one language spoken by early man. A good portion of any primitive language is determined by the environment in which it is spoken. For example, people living near desserts wouldn't have a word for fish; those living in low, flat places wouldn't have a word for mountain.

As nearly as can be determined, there was one language spoken by residents living around what is now the Black Sea, about 7,500 years ago. We refer to this language as Proto-Indoeuropean. When the ice age ended, the waters of the oceans and the Mediterranean Sea rose sharply, and what had been no more than a large lake suddenly flooded and became the Black Sea. As water from the Mediterranean came rushing in and residents living around the lake fled in all directions, their language started taking on new characteristics, depending on the things they encountered in their new environments. These became the languages of Europe and India. (Of course this can't account for the very different languages spoken in Africa, the far East, or the American continents. These people had branched out from those who had migrated to the Black Sea area many thousands of years earlier.)

Once, "the whole earth had one language and few words". Then came the building of the Tower of Babel, and then the Confusion of Tongues (or languages).

Search on the internet for "Tower of Babel" and you get a good number of articles and references, some of which mention how the one global language got diversified.

I was interested in the Tower of Babel topic because of the link to natural human ambition (which I believe to be destructive when carried too far), but I'm quite curious as to your motivation for asking this question.

Body language

Sumarian or Egyptian might be a good possibility for the oldest we know about--they're the ones with the oldest writing, at least. But I'm sure there was a group of cavemen somewhere who spoke "Ugh" long before that.

before 2500 years ago there was many languages too,there has been spoken languages that werent heard of,american indians,aboriginals of australia etc that date back thousands of years.

My guess is that you are expecting the answer to be Hebrew as the name Adam literally refers to Mankind. However, that isn't exactly stated in the Tanakh.

Grunts

The language of sound.

Please read Genesis, Chapter 11, Verse 1, from The New Oxford Annotated Bible. I think the answer to your question is, the language of God.

Proto