Founding of Rome (traditional)
According to legend, Romulus founded Rome in 753 BCE; the Romans later counted years from this date.
According to legend, Romulus founded Rome in 753 BCE; the Romans later counted years from this date.
Traditionally, the Romans expel King Tarquin the Proud and establish a republic led by elected consuls.
Julius Caesar leads his army across the Rubicon into Italy in defiance of the Senate, starting a civil war with Pompey.
Julius Caesar is stabbed to death in Rome by senators including Brutus and Cassius on the Ides of March.
The Senate grants Octavian the title Augustus; he becomes the first Roman emperor, inaugurating the Pax Romana.
Augustus, the first Roman emperor, dies and is succeeded by his adopted son Tiberius.
By the end of Emperor Trajan's reign the Roman Empire stretches from Britain to Mesopotamia.
The Roman Empire nearly collapses under civil wars, invasions, plague and economic crisis until Diocletian's accession.
Emperors Constantine and Licinius agree on religious toleration, ending the persecution of Christians in the Roman Empire.
After the death of Theodosius I, the empire is divided between his two sons into Western and Eastern halves, never to be reunited.
Odoacer deposes Romulus Augustulus, the last Western Roman emperor, a conventional end of antiquity in Europe.
Pope Leo III crowns Charlemagne Emperor of the Romans in Rome on Christmas Day.
Charlemagne's three grandsons divide the empire into three kingdoms, laying the groundwork for the later France and Germany.
Pope John XII crowns Otto I emperor in Rome, commonly regarded as the beginning of the Holy Roman Empire.
During the Investiture Controversy, Emperor Henry IV goes to Canossa to seek absolution from Pope Gregory VII.
Returning from exile, the banker Cosimo de' Medici becomes the de facto ruler of Florence; the Medici become major patrons of Renaissance art.
Victor Emmanuel II is proclaimed King of Italy, a decisive step in Italian unification.
Troops of the Kingdom of Italy enter Rome, ending the Papal States; Rome then becomes the capital of unified Italy.
Benito Mussolini's Fascists march on Rome; King Victor Emmanuel III appoints Mussolini prime minister, beginning Fascist rule in Italy.
Britain, France, Italy and Germany agree to Germany's annexation of Czechoslovakia's Sudetenland, the high point of the appeasement of Hitler.
The United States enacts a large-scale economic aid programme to rebuild Western European economies after the Second World War.
Twelve North American and Western European countries sign the North Atlantic Treaty in Washington, creating the NATO collective defence alliance.
The Maastricht Treaty enters into force, formally establishing the European Union and laying the groundwork for a single currency.