The Greek War of Independence began on March 25, 1821, with the raising of the Greek flag at the Monastery of Agia Lavra.

Theodoros Kolokotronis was a prominent military leader and a key figure in the Greek War of Independence.

Great Britain, along with France and Russia, played a crucial role in supporting the Greek cause during the war.

The Greek War of Independence resulted in the establishment of an independent Greek state, recognized by the Treaty of Constantinople in 1832.

The Battle of Navarino in 1827, where a combined fleet of British, French, and Russian ships defeated the Ottoman navy, is often seen as a turning point in the war.

Ioannis Kapodistrias was elected as the first President of Greece in 1827, serving until his assassination in 1831.

Austria, along with Prussia, initially opposed Greek independence due to concerns about the potential spread of revolutionary ideas in Europe.

The Hymn to Liberty, also known as the Greek National Anthem, was composed by Dionysios Solomos and set to music by Nikolaos Mantzaros during the war.

The island of Hydra served as a major naval base for the Greek forces during the war, providing ships and sailors for the Greek navy.

Mahmud II was the Ottoman sultan at the beginning of the Greek War of Independence in 1821.

Austria initially supported the Ottoman Empire against the Greek rebels, fearing the spread of revolutionary ideas in Europe.

The Constitution of Epidaurus was the first constitution of Greece, adopted in 1822 during the Greek War of Independence.

Nafplio served as the temporary capital of Greece during the Greek War of Independence from 1821 to 1834.

Theodoros Kolokotronis led the successful siege of Tripolitsa in 1821, a major victory for the Greek forces during the war.

Great Britain played a significant role in mediating between the Greeks and the Ottomans during the war, eventually leading to the Treaty of Constantinople in 1832.