Education in Italy is compulsory between the ages of 6-16 and consists of five stages: kindergarten, primary school, lower secondary school, upper secondary school, and university. Italy has both public and private education systems. The education system has existed since 1859 and laws have been passed to increase literacy and mandate education. Primary education lasts 5 years and provides basic subjects. Secondary education is divided into 3 years of lower secondary and 5 years of upper secondary, both of which involve final exams. Italy has a large network of public and private universities, with some like the University of Bologna being among the oldest in the world.