UNESCO founded the Associated School Project Network in 1953. In the beginning, there were only 15 countries and 33 high schools. Currently, there are 172 countries and 7,500 schools including nursery schools, primary schools, secondary schools and teacher training organizations. The ASPN is one the most successful organizations that was created by UNESCO. Shanghai High School is the only member of ASPN, and there are only 5 other affiliated schools in China.