Emilia-Romagna is an administrative region of northern Italy, comprising the historical regions of Emilia and Romagna. Its capital is Bologna. It has an area of 22,446 km2, and a population of 4.4 million. Emilia-Romagna is one of the wealthiest and most developed regions in Europe, with the third highest gross domestic product per capita in Italy. It is also a cultural center, being the home of the University of Bologna, the oldest university in the world.