The history of Budapest began with Aquincum, originally a Celtic settlement that became the Roman capital of Lower Pannonia. Hungarians arrived in the territory in the 9th century. Following the Battle of Mohács and nearly 150 years of Ottoman rule, the region entered a new age of prosperity in the 18th and 19th centuries, and Budapest became a global city after its unification in 1873. It also became the second capital of the Austro-Hungarian Empire. Budapest was the focal point of the Hungarian Revolution of 1848, the Hungarian Republic of Councils in 1919, the Battle of Budapest in 1945, and the Revolution of 1956.
Cited as one of the most beautiful cities in Europe, Budapest's extensive World Heritage Site includes the banks of the Danube, the Buda Castle Quarter, Andrássy Avenue, Heroes' Square and the Millennium Underground Railway, the second-oldest metro line in the world. It has around 80 geothermal springs, the world's largest thermal water cave system, second largest synagogue, and third largest Parliament building.
The city attracts about 4.4 million tourists a year, making it the 25th most popular city in the world, and the 6th in Europe, according to Euromonitor. Budapest is home to the headquarters of the European Institute of Innovation and Technology, eighteen universities are situated in Budapest, including the Central European University, Semmelweis University, Eötvös Loránd University and the Budapest University of Technology and Economics. /Source: Wikipedia/