On November 5, 1826, at the port of Atalanti, arrived the "Thessalomacedonians" (Θεσσαλομακεδόνες) refugees, led by Angelis Gatsos and Anastasios Karatasos, organized with the aid of Ioannis Kolettis.
[2] Between February and March 1831, 150 captains with their men fled from Thessaloniki to southern parts of Greece and the government of Ioannis Kapodistrias received and accommodated them in Atalanti.
[3] A royal decree of March 20, 1835, affirmed that 370 Macedonian refugees were granted the right to settle in Atalanti, freeing up 1.5 hectares (3+1⁄2 acres) of state land for cultivation and food.
By royal decree of April 25, old style, or May 7, 1837, Macedonians were granted the right of self-government - in this case, against the existing local Greek community.
This provoked protest by the mayor and as a result the formation of two parallel self-governing communities, with no analogue in the territory of the Kingdom of Greece.