While the Iklaina tablet is an example of the earliest writing system in Europe, other writing is much older, explained Classics professor Thomas Palaima, who wasn't involved in the study, which is to be published in the April issue of the journal Proceedings of the Athens Archaeological Society. For example, writings found in China, Mesopotamia, and Egypt are thought to date as far back as 3,000 B.C.
Oh, No, No, No! Its impossible for ancient White Europeans to be as advanced as those brown and yellow people of China, Mesopotamia and Egypt!
I think Martin Bernal explains the earliest Greek civilization as imported from Egypt...that they don't resemble Egyptian civilization very much is a minor problem. (We know there was contact already in the Bronze Age--Egyptian objects found on Crete helped Sir Arthur Evans develop the dating system for Bronze Age Aegean civilizations.)
Linear A is older but can't be read (apart from some symbols whose meaning can be guessed). There are even earlier symbols found elsewhere in Europe (like in the Danube Valley in present-day Croatia) but whether they are part of a writing system or just decoration is debatable.