* Language Evolution: Languages evolve over time, constantly changing and branching off into new dialects and languages. It's impossible to pinpoint a single origin point for all languages.
* No Written Records: The earliest languages were spoken, not written. We have no written records from those times, making it impossible to trace the exact lineage of languages back to a single origin.
* Proto-Languages: Linguists have reconstructed hypothetical "proto-languages" based on the similarities between existing languages. These proto-languages are not actual languages but theoretical reconstructions.
What we can say:
* Proto-Indo-European: This reconstructed language is believed to be the ancestor of many European and Asian languages.
* Proto-Sino-Tibetan: Another important proto-language, which gave rise to languages like Chinese, Tibetan, and Burmese.
It's more accurate to say that languages have a long and complex history, with various branches and families evolving over thousands of years. We can study these lineages and make educated guesses about their origins, but we can never know for sure which language was "first."