History of Plovdiv since 1886), supported by the Greek state and nationalistic organizations, was also the forum of the Greek communities of the wider region. The city was captured from the Ottomans during the Battle of Philippopolis in 1878. According to the Treaty of San Stefano on 3 March 1878 the Principality of Bulgaria included the lands with predominantly Bulgarian population. Plovdiv was selected as a capital of the restored country and as a seat of the Temporary Russian Government. Great Britain and Austria-Hungary, however, did not approve that treaty and the final result of the war was concluded in the Congress of
Plovdiv Arts; and others. The 2009 International Olympiad in Informatics (IOI) was held at the University of Plovdiv "Paisiy Hilendarski", between 8 and 15 August 2009. The 2009 IOI Honorary Patron was Bulgarian President Georgi Parvanov. Between 1875 and 1906, the Zariphios School was one of the local Greek educational institutions that provided elementary and secondary education. Plovdiv Sports Complex consists of Plovdiv Stadium with several additional football fields, tennis courts, swimming pools, a rowing base with a 2 km-long channel, restaurants, and cafés in a spacious park in the western part of the city just south of the Maritsa river.