The history of the Hellenic Republic constitutes three discrete republican periods in the modern history of Greece: from 1822 until 1832; from 1924 until 1935; and from 1974 through to the present. See also the constitutional history of Greece.
The First Hellenic Republic (Greek: Αʹ Ελληνική Δημοκρατία) is a historiographic term used for a series of councils and "Provisional Governments" during the Greek War of Independence. In the first stages of the uprising, various areas elected their own regional governing councils. These were replaced by central administration at the First National Assembly of Epidaurus in early 1822, which also adopted the first Greek Constitution. A series of National Assemblies followed, while Greece was threatened with collapse due to civil war and the victories of Ibrahim Pasha.
In 1827, the Third National Assembly at Troezen selected Count Ioannis Kapodistrias as Governor of Greece for a term of seven years. He arrived in 1828 and established the Hellenic State, ruling with quasi-dictatorial powers. He was assassinated by political rivals in 1831 and was succeeded by his brother, Augustinos Kapodistrias until in 1832 the Great Powers declared Greece a Kingdom and selected the Bavarian Prince Otto to be its king.