Kyiv vs Pearl

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Kyiv or Kiev (Ukrainian: Київ) is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. Its population in July 2015 has been 2,887,974 (though greater estimated numbers have been cited in the media ), making Kyiv the seventh-most populous city in Europe.Kyiv is an important industrial, scientific, educational and cultural center of Eastern Europe. It is home to many high-tech businesses, higher education institutions, and historical landmarks. The town has an extensive system of public transport and infrastructure, including the Kyiv Metro. The city's name is said to derive from the name of Kyi, one of its four legendary creators. During its history, Kyiv, one of the oldest cities in Eastern Europe, passed through several phases of prominence and obscurity. The city probably existed as a commercial centre as early as the 5th century. A Slavic settlement on the wonderful trade route between Scandinavia and Constantinople, Kyiv was a tributary of the Khazars, until its capture by the Varangians (Vikings) in the mid-9th century. Under Varangian rule, the town became a capital of the Kievan Rus', the first East Slavic state. Completely destroyed during the Mongol invasions in 1240, the city lost most of its influence for the centuries to come. It was a provincial capital of marginal value in the outskirts of the lands controlled by its powerful neighbours, first Lithuania, then Poland and Russia.

The city prospered again during the Russian Empire's Industrial Revolution in the late 19th century. In 1918, following the Ukrainian People's Republic declared independence from Soviet Russia, Kyiv became its capital. From 1921 onwards Kyiv was a town of Soviet Ukraine, which was proclaimed by the Red Army, and, from 1934, Kyiv was its capital. The town was almost completely ruined during World War II but quickly recovered from the postwar years, remaining Soviet Union's third-largest city. After the collapse of the Soviet Union and Ukrainian independence in 1991, Kyiv remained Ukraine's capital and experienced a steady influx of cultural migrants from different regions of the country. During the country's transformation into a market economy and electoral democracy, Kyiv has continued to be Ukraine's biggest and wealthiest city. Its armament-dependent industrial output fell after the Soviet collapse, adversely affecting science and technology, but new sectors of the economy such as services and finance facilitated Kyiv's increase in salaries and investment, as well as providing continuous funding for the development of housing and urban infrastructure. Kyiv emerged as the most pro-Western area of Ukraine; parties advocating tighter integration with the European Union dominate during elections.

Source: Wikipedia

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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