hodius' disciples. Karel �korpil suggested that Boris I may have been interred there. The synthetic culture with Hellenistic Thracian, Roman, as well as eastern�Armenian, Syrian, Persian�traits that developed around Odessus in the 6th century under Justinian I, may have influenced the Pliska-Preslav culture of the First Bulgarian Empire, ostensibly in architecture and plastic decorative arts, but possibly also in literature, including Cyrillic scholarship. In 1201, Kaloyan took over the Varna fortress, then in Byzantine hands, on Holy Saturday using a siege tower, and secured it for the Second Bulgarian Empire.
By the late 13th century, with the Treaty of Nymphaeum of 1261, the offensive-defensive alliance between Michael VIII Palaeologus and Genoa that opened up the Black Sea to Genoese commerce, Varna had turned into a thriving commercial port city frequented by Genoese and later also by Venetian and Ragusan merchant ships. The first two maritime republics held consulates and had expatriate colonies there (Ragusan merchants remained active at the port through the 17th century operating from their colony in nearbyProvadiya). The city was flanked by two fortresses with smaller commercial ports of their own, Kastritsi and Galata, within sight of each other, and was protected by two other strongholds overlooking the lakes, Maglizh and Petrich. Wheat, animal skins, honey and wax, wine, timber and other local agricultural produce for the Italian and Constantinople markets were the chief exports, and Mediterranean foods and luxury items were imported. The city introduced its own monetary standard, the Varna perper, by the mid-14th century; Bulgarian and Venetian currency exchange rate was fixed by a treaty. Fine jewelry, household ceramics, fine leather and food processing, and other crafts flourished; shipbuilding developed in the Kamchiya river mouth.
14th-century Italian portolan charts showed Varna as arguably the most important seaport between
