Gdansk, the city of Amber, Greenery, Freedom, Culture, and Science is a city of more than half a million inhabitants, a strong economic, scientific and cultural centre located in the north of Poland, at the Baltic Sea (the Polish maritime capital). With over a thousand years of history (in 1997 Gdansk celebrated its millennium) and its Hanseatic tradition, the city has always played a major role in the commercial relationships between the Northern and Western Europe on the one hand and the countries of the Central and Eastern Europe on the other. It is also the cradle of "Solidarity", Eastern Europe's first Independent Trade Union which triggered the historical changes in this part of the Continent in 1980.The city features precious historical buildings (including the largest brick-made church in the world, St. Mary's Basilica, late Gothic), museums, universities and colleges.