359 – 336 BC – Philip II ruled the Kingdom of Macedonia.

585 BC – The Greeks, Byzantines and Turks settled in the area.

15 BC – The Romans had begun to extend their empire to include the region of Bulgaria.

681 AD – The Bulgarian Khan Asparouh founded a kingdom in the south-eastern Balkans that became known as Bulgaria, by uniting the Proto-Bulgarians and the Slavs.

803 – 814 AD – During the reign of Khan Krum the Bulgarian State expanded: to the west to border the empire of Charles the Great; and to the east, where it reached the walls of Constantinople (Byzantine’s capital).

864 AD – Prince Boris I Michael was baptized as an Orthodox Christian and the Bulgarian people adopted Christianity as their official religion.

9^th Century – Cyril and Methodius created the Cyrillic alphabet. Today, the alphabet is still used in many countries in Eastern Europe and Asia.

893 – 927 AD – During the reign of King Simeon I, Bulgarian culture reached its peak to what Bulgarians call the “Golden Age of Bulgarian Culture”, while the state’s territory had reached three Seas: the Black, the Adriatic, and the Aegean Seas.

1014 AD – The Byzantine Emperor Basil earned the title "Slayer of Bulgars", after he ordered the blinding of 15,000 Bulgarians.

1018 AD – Bulgaria was officially conquered by the Byzantine Empire.

1186 AD – The brothers Assen and Peter overthrew the domination of the Byzantine Empire and created The Second Bulgarian Kingdom with Turnovo as the new capital. Bulgaria was ruled first by Assen and then by Peter.

1197 – 1207 AD – During the reign of Kaloyan (brother of Assen and Peter), Bulgaria was restored and regained its confidence as a great state.

1218 – 1241 AD – During the reign of King Ivan Assen II, the Second Bulgarian Kingdom reached its peaks again: political authority was established in Southeastern Europe, and the territory of the country spread to the Black, Aegean and Adriatic Seas for the second time in history.

1235 AD – The Head of the Bulgarian Church was given the title of Patriarch.

1396 AD – The country’s division into two kingdoms (Vidin and Turnovo), led to its destabilization and it was conquered by the Ottoman Empire, whose domination would last for almost 500 years.

1876 – The first significant and organized attempt at liberation from the Ottoman Empire was the April Uprising. Although unsuccessful, the attempt drew Europe’s attention to the country’s priority issue.

1878 – The Russian-Turkish War of Liberation freed the Bulgarian State and The Congress of Berlin (that same year) divided the Bulgarian territories into three parts: the Principality of Bulgaria - with Prince Alexander Battenberg at its head, Eastern Rumelia - with a Christian Governor appointed by the Sultan, and Thrace and Macedonia, which remained under the rule of the Ottoman Empire.

1879 – Bulgaria adopted its first Constitution, which at the time, was one of the most democratic constitutions.

1885 – Unification of the Principality of Bulgaria and Eastern Rumelia.

1887 – Prince Ferdinand Saxe-Coburg Gotha, became head of Bulgaria.

1903 – The Ilinden-Preobrazhenie Uprising broke out, striving for the liberation of Macedonia and the Ochrid region.

1908 – Prince Ferdinand Saxe-Coburg Gotha, proclaimed the country’s independence from Turkey and became king of the Bulgarian people.

1912 – Bulgaria took part in and won the first of the Balkan Wars, fighting together with Serbia and Greece for the freedom of Thrace and Macedonia.

1913 – In the subsequent Balkan War between the allies however, Bulgaria was defeated by Romania, Turkey and by its previous partners, who tore territories from her.

1914 – During World War I, Bulgaria took the side of the Central Powers. The Neuilly Peace Treaty of 1919 imposed severe provisions on Bulgaria: it lost a great part of its lands.

1939 – 1945 – Bulgaria led a policy in the interest of Germany and the Axis powers. Later Bulgaria declared war on the USA and the UK, but Bulgarian cavalry units did not fight on the Eastern Front. King Boris III supported the public pressure and did not allow the deportation of about 50,000 Bulgarian Jews.

1946 – Under the political an economic influence of the Soviet Union, Bulgaria was proclaimed a Republic and the Communist Party came to power. King Simeon II and his family were banishing from the newly created Republic.

1989 – On November 10, the government resigned. The nest year, a Grand National Assembly was elected, and political changes in Bulgaria are launched.

1991 – Bulgaria adopted a new Constitution.

1995 – Bulgaria started the process of accession to the European Union.

2004 – Bulgaria joined NATO.

2005 – The treaty of Accession of the Republic of Bulgaria to the European Union was signed in Luxembourg.

2007 – Bulgaria became a member of the European Union.