In 1952 Greece joined the North Atlantic Treaty Organization and also granted women the right to vote and to hold political office.During 1952 to 1963 Alexander Papagos and Konstantinos Karamanlis each held the office of prime minister.
Between the World Wars, the Greek population vacillated between the establishment of a republican form of government and the restoration of monarchy.
Great Britain, France, and Russia assisted Greece in its struggle for independence, and Greece came under the protection of these powers by the London Protocol of 1830.
In 1832 the Bavarian Otto I became the first king of Greece, and in 1844 a conservative revolutionary force established a constitutional monarchy.
Greece came under Macedonian domination between 338 and 200 The Macedonian king, Alexander the Great, conquered Greece, Persia, and Egypt to create an empire, and he carried the idea of Hellenism to places as far away as India.
The Hellenistic Age that followed Alexander's rule lasted until 146 395, Greece became part of the Eastern Empire, which continued as the Byzantine Empire until 1453.