Nicolaus Copernicus Albert, Alexander Jagiellon, and Sigismund I the Old. He was a friend and key advisor to each ruler, and his influence greatly strengthened the ties between Warmia and Poland proper. Watzenrode came to be considered the most powerful man in Warmia, and his wealth, connections and influence allowed him to secure Copernicus' education and career as a canon at Frombork Cathedral. Copernicus is postulated to have spoken Latin, German, and Polish with equal fluency; he also spoke Greek and Italian, and had some knowledge of Hebrew. The vast majority of Copernicus's extant writings are in Latin, the language of European
Copernicus Science Centre Roots of civilization, Lightzone, Bzzz!); the exhibit for teenagers – RE: generation was opened 3 March 2011; a planetarium The Heavens of Copernicus opened on 19 June, the Discovery Park on 15 July, chemistry laboratory - 18 October; biology laboratory - 15 November, robotics workshop - 6 December, and physics laboratory - 20 December. Since 2008, the Copernicus Science Centre together with Polish Radio has organized the Science Picnic - Europe's largest outdoor science-popularization event. In 2011 the Centre hosted the ECSITE conference (European Network of Science Centres and Museums) – one of the most important events in the field