Christos Tsigiridis, Greek engineer (b. 1877)
Christos Tsigiridis (Greek: Χρίστος Τσιγγιρίδης, pronounced [ˈxristos tsiɟiˈriðis]; 1877 - 1947) was a Greek electrical engineer and technological pioneer of his era. He was the first who imported the technology of sound reinforcement systems to Greece and led the installation of the first sound system in the Greek Parliament. He is mainly known for setting up the first radio station in Greece and the wider Balkans in the city of Thessaloniki.