Kragujevac is the fourth largest city in Serbia, the main city of the Šumadija region and the administrative centre of Šumadija District. It is situated on the banks of the river Lepenica. Kragujevac was the first capital of modern Serbia (1818–1839), and the first constitution in the Balkans was proclaimed in this city in 1835. Further on, the first full- fledged university in Serbia was founded in 1838, preceded by the first grammar school (Gimnazija), Printworks (both in 1833), professional National theatre (1835) and the Military academy (1837).
You can find more information on Kragujevac by visiting American corner.