Thessaloniki is the largest in length and population city of Macedonia in North Hellas and also the second largest city in the country, following Athens.
It hosts the headquarters of Thessaloniki’s Township, as well as of the Regional Unity of Thessaloniki. It also hosts the headquarters of Central Macedonia Region and of the Decentralized Administration of Macedonia-Thrace.
It was found in 316/5 B.C. by the Macedonian general Kassandros, who named the city after his wife Thessaloniki, who was half sister of Alexander the Great.
The city originated after the merge of 26 smaller towns around Thermaikos Gulf. During the 2nd century B.C. the city was conquered by the Romans and became a Roman province of Macedonia.