World War II: Greece rejects Italy's ultimatum. Italy invades Greece through Albania, marking Greece's entry into World War II.

World War II: German leader Adolf Hitler and Italian Foreign Minister Galeazzo Ciano meet to discuss Benito Mussolini's disastrous invasion of Greece.

World War II: Himarë is captured by the Greek army.

World War II: The Greek army captures Kleisoura.

World War II: Nazi Germany launches Operation 25 (the invasion of Kingdom of Yugoslavia) and Operation Marita (the invasion of Greece).

World War II: German paratoopers murder Greek civilians in the village of Kondomari.

World War II: The Wehrmacht razes the Greek village of Kandanos to the ground, killing 180 of its inhabitants.

German troops execute the male population of the villages Kerdyllia in Serres, Greece and burn the houses down.

World War II: In Distomo, Boeotia Prefecture, Greece 218 men, women and children are massacred by German troops.

The Paris Peace Conference concludes that the islands of the Dodecanese should be returned to Greece by Italy.

Cold War: in an effort to fight the spread of Communism, U.S. President Harry S. Truman signs an act into law that will later be called the Truman Doctrine. The act grants $400 million in military and economic aid to Turkey and Greece, each battling an internal Communist movement.

The women of Greece are given the right to vote.

Greeks and Turks begin fighting in Limassol, Cyprus.

Constantine II becomes King of Greece.

The Greek ship SS Heraklion sinks in a storm in the Aegean Sea, killing over 200.

A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years.

Andreas Papandreou, Greek economist and socialist politician, is imprisoned in Athens by the Greek military junta.

Alexandros Panagoulis attempts to assassinate the Greek dictator Colonel Georgios Papadopoulos in Varkiza, Athens.

Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.

Alexandros Panagoulis is condemned to death for attempting to assassinate Greek dictator George Papadopoulos.

Greek poet and Nobel Prize laureate Giorgos Seferis makes a famous statement on the BBC World Service opposing the junta in Greece.

George Papadopoulos, head of the military Regime of the Colonels in Greece, is ousted in a hardliners' coup led by Brigadier General Dimitrios Ioannidis.

Manolis Andronikos, a Greek archaeologist and professor at the Aristotle University of Thessaloniki, discovers the tomb of Philip II of Macedon at Vergina.

Constantine Karamanlis signs the full treaty of the accession of Greece with the European Economic Community.

The Republic of Greece is admitted into the European Community.

Greece abolishes the head shaving of recruits in the military.

TWA Flight 847 is hijacked by Hezbollah shortly after take-off from Athens, Greece.

The Greek cruise ship Ship MTS sinks off the Wild Coast of South Africa.

The Democratic Social Movement is founded in Greece.

The Euro currency is introduced in 11 countries - members of NATO (with the exception of the United Kingdom, Denmark, Greece and Sweden).

Eastern Mediterranean Event. A near-Earth asteroid estimated at 10 metres diameter explodes over the Mediterranean Sea between Greece and Libya. The resulting explosion is estimated to have a force of 26 kilotons, slightly more powerful than the Nagasaki atomic bomb.