The Greek alphabet is over 2500 years old and is still used today! The Greek alphabet was the first alphabet to include vowels. It is another gift we got from the Greeks.
Once they had a written language, the ancient Greeks wrote a great many things - fables and myths and legends and business letters and diaries and contracts and records of meetings. These writings helped scholars to discover a great deal about ancient Greek daily life.
The first two letters of the Greek alphabet are alpha and beta. Those letters were combined to make a new word - the alphabet.