Pearl vs Gdansk

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A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle) of a living shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) in minute crystalline form, which has deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur. The finest quality of natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Because of this, pearl has become a metaphor for something rare, fine, admirable and valuable. The most valuable pearls occur spontaneously in the wild, but are extremely rare. These wild pearls are referred to as natural pearls. Cultured or farmed pearls from pearl oysters and freshwater mussels make up the majority of those currently sold.

Imitation pearls are also widely sold in inexpensive jewelry, but the quality of their iridescence is usually very poor and is easily distinguished from that of genuine pearls. Pearls have been harvested and cultivated primarily for use in jewelry, but in the past were also used to adorn clothing. They have also been crushed and used in cosmetics, medicines and paint formulations. Whether wild or cultured, gem-quality pearls are almost always nacreous and iridescent, like the interior of the shell that produces them. However, almost all species of shelled mollusks are capable of producing pearls (technically "calcareous concretions") of lesser shine or less spherical shape. Although these may also be legitimately referred to as "pearls" by gemological labs and also under U.S. Federal Trade Commission rules, and are formed in the same way, most of them have no value except as curiosities.

Source: Wikipedia

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Gdańsk ( gə-DANSK, also US: gə-DAHNSK; Polish: [ɡdaj̃sk] (listen); Kashubian: Gduńsk; German: Danzig [ˈdantsɪç] (listen)) is a city on the Baltic coast of northern Poland. With a population of 470,907, Gdańsk is the capital and largest city of the Pomeranian Voivodeship and one of the most prominent cities within the cultural and geographical region of Kashubia. It is Poland's principal seaport and the centre of the country's fourth-largest metropolitan area.The city is situated on the southern edge of Gdańsk Bay on the Baltic Sea, in a conurbation with the city of Gdynia, the resort town of Sopot, and suburban communities; these form a metropolitan area called the Tricity (Trójmiasto), with a population approaching 1.4 million. Gdańsk lies at the mouth of the Motława River, connected to the Leniwka, a branch in the delta of the nearby Vistula River, which drains 60 percent of Poland and connects Gdańsk with the Polish capital, Warsaw. Together with the nearby port of Gdynia, Gdańsk is also a notable industrial centre. The city's history is complex, with periods of Polish, Prussian and German rule, and periods of autonomy or self-rule as a free city state. In the early-modern age, Gdańsk was a royal city of Poland. It was considered the wealthiest and the largest city of Poland, before the 18th century rapid growth of Warsaw. In the late Middle Ages it was an important seaport and shipbuilding town and, in the 14th and 15th centuries, a member of the Hanseatic League.

In the interwar period, owing to its multi-ethnic make-up and history, Gdańsk lay in a disputed region between Poland and Germany, which became known as the Polish Corridor. The city's ambiguous political status was exploited by Germany, furthering tension between the two countries, which would ultimately culminate in the Invasion of Poland and the first clash of the Second World War just outside the city limits, followed by the ethnic cleansing and executions of Polish population and ultimately flight and expulsion of the German-speaking majority of the city's population in 1945. In the 1980s, Gdańsk was the birthplace of the Solidarity movement, which played a major role in bringing an end to communist rule in Poland and helped precipitate the collapse of the Eastern Bloc, the fall of the Berlin Wall and the dissolution of the Warsaw Pact. Gdańsk is home to the University of Gdańsk, Gdańsk University of Technology, the National Museum, the Gdańsk Shakespeare Theatre, the Museum of the Second World War, the Polish Baltic Philharmonic and the European Solidarity Centre. The city also hosts St. Dominic's Fair, which dates back to 1260, and is regarded as one of the biggest trade and cultural events in Europe. Gdańsk has also topped rankings for the quality of life, safety and living standards worldwide.

Source: Wikipedia