Wikipedia - A1 Ethniki Volleyball

The A1 Ethniki (Greek: Α1 Εθνική Κατηγορία), often referred to as the Greek Volleyball League, is the highest professional volleyball league in Greece. It is run by the Hellenic Volleyball Federation. It is considered one of the top national leagues in European volleyball, as its clubs have made significant success in European competitions.

History

It was first organized in 1928 as a Panhellenic Championship. In the 1968–69 season, the men's Alpha Ethniki category was created at the men's level, which from 1990–91 to 2009–10 was named A1.