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Green is the color between blue and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495–570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content.
During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers and the gentry, while red was reserved for the nobility. For this reason, the costume of the Mona Lisa by Leonardo da Vinci and the benches in the British House of Commons are green while those in the House of Lords are red.
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Łódź (Polish: [wutɕ] (listen)), written in English as Lodz, is the third-largest city in Poland and a former industrial centre. Located in the central part of the country, it has a population of 679,941 (2019). It is the capital of Łódź Voivodeship, and is located approximately 120 kilometres (75 mi) south-west of Warsaw. The city's coat of arms is an example of canting, as it depicts a boat (łódź in Polish), which alludes to the city's name.
Łódź was once a small settlement that first appeared in 14th-century records. Despite being granted town rights in 1423, it remained the private property of the Kuyavian bishops and clergy until the late 18th century. The Second Industrial Revolution brought rapid growth in textile manufacturing and in population due to the inflow of migrants, notably Germans and Jews. Ever since the industrialization of the area, the city has struggled with multinationalism and social inequalities, which were documented in the novel The Promised Land by Nobel Prize-winning author Władysław Reymont. The contrasts greatly reflected on the architecture of the city, where luxurious mansions coexisted with redbrick factories and dilapidated tenement houses.