Thracian Mesembria (6th–1st c. BC)
The settlement was founded in the 6th century BC by Dorian colonists from Megara on a Thracian outpost. It was called Mesembria — likely after the Thracian leader Melsas. Fortress walls and terracotta finds in the Archaeological Museum date from this period.
Roman period (1st c. BC – 4th c. AD)
Once part of the Roman Empire, Mesembria became a lively port — it minted its own coins and expanded its trade. Roman baths and sections of the fortress wall survive from that era.
Byzantium & mediaeval Bulgaria (5th–14th c.)
The town alternated between Byzantium and the First and Second Bulgarian Empires — changing rulers several times. It was captured by Khan Krum in 812. Most of the churches — St. Sophia (Old Metropolitan), Christ Pantocrator, St. John Aliturgetos and others — date from this period.
Ottoman era and National Revival (1453–1878)
Under Ottoman rule, Nessebar retained its status as a Christian metropolitan town. In the 18th–19th centuries, the characteristic Revival-era timber-framed houses were built; some still function today as museums, hotels and restaurants.
Liberation and UNESCO (1878 — today)
After the 1878 Liberation, Nessebar became a Bulgarian fishing town. In 1956, the old town was declared an architectural and archaeological reserve, and in 1983 it was inscribed on the UNESCO World Heritage List. Today it is one of the most visited destinations on the Bulgarian Black Sea coast.