Green vs Calais

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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.

It also has a long historical tradition as the color of Ireland and of Gaelic culture. It is the historic color of Islam, representing the lush vegetation of Paradise. It was the color of the banner of Muhammad, and is found in the flags of nearly all Islamic countries.In surveys made in American, European, and Islamic countries, green is the color most commonly associated with nature, life, health, youth, spring, hope, and envy. In the European Union and the United States, green is also sometimes associated with toxicity and poor health, but in China and most of Asia, its associations are very positive, as the symbol of fertility and happiness. Because of its association with nature, it is the color of the environmental movement. Political groups advocating environmental protection and social justice describe themselves as part of the Green movement, some naming themselves Green parties. This has led to similar campaigns in advertising, as companies have sold green, or environmentally friendly, products. Green is also the traditional color of safety and permission; a green light means go ahead, a green card permits permanent residence in the United States.

Source: Wikipedia

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Calais (UK: KAL-ay, US: kal-AY, traditionally KAL-iss, French: [kalɛ] (listen); Picard: Calés; West Flemish: Kales) is a city and major ferry port in northern France in the department of Pas-de-Calais, of which it is a sub-prefecture. Although Calais is by far the largest city in Pas-de-Calais, the department's prefecture is its third-largest city of Arras. The population of the city proper is 73,911, and that of the urban area is 128,931 (2017). Calais overlooks the Strait of Dover, the narrowest point in the English Channel, which is only 34 km (21 mi) wide here, and is the closest French town to England. The White Cliffs of Dover can easily be seen on a clear day from Calais. Calais is a major port for ferries between France and England, and since 1994, the Channel Tunnel has linked nearby Coquelles to Folkestone by rail. Due to its position, Calais since the Middle Ages has been a major port and a very important centre for transport and trading with England. Calais came under English control after Edward III of England captured the city in 1347, followed by a treaty in 1360 that formally assigned Calais to English rule. Calais grew into a thriving centre for wool production, and came to be called the "brightest jewel in the English crown" owing to its great importance as the gateway for the tin, lead, lace and wool trades (or "staples"). Calais remained under English control until its capture by France in 1558.

The town was virtually razed to the ground during World War II, when in May 1940, it was a strategic bombing target of the invading German forces who took the town during the Siege of Calais. During World War II, the Germans built massive bunkers along the coast in preparation for launching missiles at England. The old part of the town, Calais proper (known as Calais-Nord), is situated on an artificial island surrounded by canals and harbours. The modern part of the town, St-Pierre, lies to the south and south-east. In the centre of the old town is the Place d'Armes, in which stands the Tour du Guet, or watch-tower, a structure built in the 13th century, which was used as a lighthouse until 1848 when a new lighthouse was built by the port. South east of the Place is the church of Notre-Dame, built during the English occupancy of Calais. Arguably, it is the only church built in the English perpendicular style in all of France. In this church, former French President Charles de Gaulle married his wife, Yvonne Vendroux. South of the Place and opposite the Parc St Pierre is the Hôtel-de-ville (the town hall), and the belfry from the early 20th century. Today, Calais is visited by more than 10 million annually. Aside from being a key transport hub, Calais is also a notable fishing port and a centre for fish marketing, and some 3,000 people are still employed in the lace industry for which the town is also famed.

Source: Wikipedia