The Greek alphabet is over 2500 years old! Even though it is very old, it still works. People living in Greece today use this alphabet to make words, just as we use our alphabet to make words.
Many people think the idea of an alphabet is an ancient Greek invention, but the Greeks borrowed their alphabet from another culture, the Phoenicians.
The Greeks traded with the Phoenicians. When they saw the Phoenicians writing things down, they thought that was very clever. The Greeks could easily see the usefulness of a written language.