Renaissance in Poland late 18th century. The period of Polish Renaissance, supportive of intellectual pursuits, produced many outstanding artists and scientists. Among them were Nicolaus Copernicus who in his "De revolutionibus orbium coelestium" presented the heliocentric theory of the universe, Maciej of Miechów, author of "Tractatus de duabus Sarmatis..." – the most accurate up to date geographical and ethnographical account of Eastern Europe; Bernard Wapowski, a cartographer whose maps of that region appeared in Ptolemy's "Geography"; Marcin Kromer who in his "De origine et rebus gestis Polonorum libri..." described both the history and geography of Poland; Andrzej Frycz Modrzewski, a philosopher concerned with
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