1st century- Romans found the settlements known as Aquincum, Contra-Aquincum and Campona. Aquincum becomes the largest town of the Danubian region and one of the capitals of Pannonia.
5th century- The Age of Huns. King Attila builds a city for himself here according to later chronicles. After his death, the sons of his brother Mundzuk, Attila and Bleda, in control of the united Hun tribes.
1241- Tatar invasions destroy both towns. King Béla IV builds the first royal castle on Castle Hill, Buda in 1248. The new town adopts the name of Buda from the earlier one (present day Óbuda). Pest is surrounded by city walls.
1458- The noblemen of Hungary elect Matthias Corvinus (in Latin) or Hunyadi Mátyás (in Hungarian) as king on the ice of the Danube. Under his reign Buda becomes a main hub of European Renaissance. He dies in 1490, after capturing Vienna in 1485.
1541- The beginning of Ottoman occupation. The Turkish Pashas build multiple mosques and baths in Buda.
1686- Buda and Pest are reconquered from the Turks with Habsburg leadership. Both towns are destroyed completely in the battles.
1867- Austro-Hungarian Compromise of 1867, followed by unprecedented civic development, resulting in the style of present day Budapest.
1873- The former cities: Pest, Buda and Óbuda are united, and with that the Hungarian capital is established with the name of Budapest.
1918-19- Following the conclusion of World War I, the Hungarian Republic of Councils is founded and 133 days later overthrown by the Romanian army which then makes excessive requisitions in Budapest. They regarded this as gathering war reparations, while others classify it as looting
1944- The Germans occupy Budapest. At the time of the occupation, there were 184,000 Jews and between 65,000 and 80,000 Christians of Jewish descent in the town. The Arrow Cross collaborated with the Germans in murdering Jews. Fewer than half of Budapest's Jews (approximately 119,000) survived the following 11 months. Soviet and Romanian troops besiege Budapest from 15 to 18 January. The retreating Germans destroy all Danube bridges. On 18 January, the Soviets complete the occupation of Pest. The Buda castle falls on 13 February. World War II took the lives of close to 200,000 Budapest residents and caused widespread damage to nearly all of the buildings in the city.
1956- The Hungarian Revolution of 1956 breaks out, ending in the invasion of a large Soviet force.
1990- Fall of Communism and the first free elections held in Hungary
