In the 18th century, Vienna was the centre of Greek diaspora where persons like Rigas Feraios, Anthimos Gazis, Neophytos Doukas and the Ypsilantis family prepared the Greek Revolution. The first Greek newspaper was printed there and the Hellenic National School in Vienna is today the oldest such in the world that has remained continuously in operation. In 20th century Austria (and especially Graz and Linz) was a popular destination for Greek students.