Sanskrit was a great answer, and some still argue that it is the reigning king of old languages, however, many scholars now point to language that I had never heard of until yesterday.
Tamil. It is widely believed to be at least 6,000 years old. Wow, and a written form to boot. It is related to languages that are considered Dravidian or proto-Dravidian…don’t get me started, because I got lost among all the references to guttural sounds etc. etc. and the many, many branches of the verbal family tree.
And I thought the old, old, English of Beowulf (the original, original that sounded half-German) was hard to follow.
Both Tamil and Sanskrit hail from India, so either way, they get the bragging rights.
Note: Some reports claim that Tamil has only 1500 years under its belt and is beaten out by another language called Kannada, found in Bangalore.
Whatever the case, I got what I needed for research, and am happy that I speak my mother tongue, good old (or rather, good new) English.
Back to work on love and murder,
Suza