There is know way to know what language is oldest European language, because spoken language has existed for hundreds of thousands of years, possibly even up to 1 million years, while written examples of language only go back 5,000 years.
The oldest known Indo-European language is believed to be Proto-Indo-European, which is the hypothetical common ancestor of all Indo-European languages.
Avestan
The oldest recorded Indo-European language is generally considered to be Vedic Sanskrit, dating back to around 1500 BCE. This ancient language is preserved in the sacred texts known as the Vedas.
The language of the Rigveda is Vedic Sanskrit. It is one of the oldest Indo-European languages and is the language in which the hymns of the Rigveda, one of the oldest sacred texts of Hinduism, were composed.
LithuanianAnswer:The previous answer is completely wrong. There is know way to know what oldest indo-European language is, because spoken language has existed for hundreds of thousands of years, possibly even up to 1 million years, whereas written language has only been shown to exist for about 5,000 years.
Vedic Sanskrit
Sanskrit is an ancient Indo-European language, so it does not have a single discoverer. It evolved over centuries and was used in ancient texts in India. It is considered the oldest language in the Indo-European language family.
Sanskrit, while being one of the oldest known languages (which has not been spoken for a couple thousand years), is not the oldest language. Vedic Sanskrit, the oldest form of the language, is generally believed to have descended fro Proto-Indo-European. There are two other parent lines of today's (and past) languages. These, with Proto-Indo-European, are Proto-Uralic (roots in the Ural Mountain region to Scandanavia) and Proto-Dravidian (southernmost region of India and a small region of modern day Pakistan).
The ancient Indo-European language of India is Sanskrit. It is one of the oldest known Indo-European languages and has been highly influential in the development of various languages in the Indian subcontinent. Sanskrit is also the language in which many ancient Indian texts, such as the Vedas and Upanishads, are written.
No one knows, but the oldest language that can be traced back is called Indo-European. The immediate ancestor of all romance languagess is called Italic.
Sanskrit belongs to the Indo-European language family, specifically within the Indo-Iranian branch. It is one of the oldest documented members of this language family and has had a significant influence on many languages in the Indian subcontinent.
As my knowledge the tamil is oldest language among dravidian language