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Luxembourg (// ( listen)) (Luxembourgish: Lëtzebuerg [ˈlətsəbuə̯ɕ] ( listen); French: Luxembourg ; German: Luxemburg), officially the Grand Duchy of Luxembourg,[note 2] is a small landlocked country in western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Its capital, Luxembourg City, together with Brussels and Strasbourg, is one of the three official capitals of the European Union and the seat of the European Court of Justice, the highest judicial authority in the EU. Its culture, people, and languages are highly intertwined with its neighbours, making it essentially a mixture of French and German cultures, as evident by the nation's three official languages: French, German, and the national language, Luxembourgish (sometimes considered a dialect of German). The repeated invasions by Germany, especially in World War II, resulted in the country's strong will for mediation between France and Germany and, among other things, led to the foundation of the European Union.
|Grand Duchy of Luxembourg|
Anthem: "Ons Heemecht"
and largest city
|Government||Unitary parliamentary constitutional monarchy|
|Legislature||Chamber of Deputies|
|15 March 1815|
• Independence in personal Union with the Netherlands (Treaty of London)
|19 April 1839|
• Reaffirmation of Independence Treaty of London
|11 May 1867|
|23 November 1890|
• from the German Reich
|1944 / 1945|
|24 October 1945|
|1 January 1958|
|2,586.4 km2 (998.6 sq mi) (168th)|
• Water (%)
• January 2018 estimate
• 2001 census
|233.7/km2 (605.3/sq mi) (58th)|
|GDP (PPP)||2018 estimate|
|$67 billion (94th)|
• Per capita
|GDP (nominal)||2018 estimate|
|$72 billion (71st)|
• Per capita
low · 19th
very high · 21st
|Currency||Euro (€)b (EUR)|
|Time zone||UTC+1 (CET)|
• Summer (DST)
|ISO 3166 code||LU|
With an area of 2,586 square kilometres (998 sq mi), it is one of the smallest sovereign states in Europe. In 2016, Luxembourg had a population of 576,249, which makes it one of the least-populous countries in Europe, but by far the one with the highest population growth rate. Foreigners account for nearly half of Luxembourg's population. As a representative democracy with a constitutional monarch, it is headed by Grand Duke Henri and is the world's only remaining grand duchy. Luxembourg is a developed country, with an advanced economy and one of the world's highest GDP (PPP) per capita. The City of Luxembourg with its old quarters and fortifications was declared a UNESCO World Heritage Site in 1994 due to the exceptional preservation of the vast fortifications and the old city.
The history of Luxembourg is considered to begin in 963, when count Siegfried I acquired a rocky promontory and its Roman-era fortifications known as Lucilinburhuc, ′little castle′, and the surrounding area from the Imperial Abbey of St. Maximin in nearby Trier. Siegfried's descendants increased their territory through marriage, war and vassal relations. At the end of the 13th century, the Counts of Luxembourg reigned over a considerable territory.  In 1308, Henry VII, Count of Luxembourg became King of the Germans and Holy Roman Emperor. The House of Luxembourg produced four Holy Roman Emperors at the high time of the Middle Ages. In 1354, Charles IV elevated the County to the Duchy of Luxembourg. Since Sigismund had no male heir, the Duchy became part of the Burgundian Circle and then one of the Seventeen Provinces of the Habsburg Netherlands. Over the centuries, the City and Fortress of Luxembourg, of great strategic importance situated between the Kingdom of France and the Habsburg territories, was gradually built up to be one of the most reputed fortifications in Europe. After belonging to both the France of Louis XIV and the Austria of Maria Theresia, Luxembourg became part of the First French Republic and Empire under Napoleon.
The present-day state of Luxembourg first emerged at the Congress of Vienna in 1815. The Grand-Duchy, with its powerful fortress, became an independent state under the personal possession of William I of the Netherlands with a Prussian garrison to guard the city against another invasion from France.  In 1839, following the turmoil of the Belgian Revolution, the purely Oil-speaking part of Luxembourg was ceded to Belgium and the Luxembourgish-speaking part (except the Arelerland, the area around Arlon) became what is the present state of Luxembourg. 
The steel industry exploiting the Red Lands' rich iron-ore grounds in the beginning of the 20th century drove the country's industrialisation. ArcelorMittal, the world's largest steel producer with headquarters in Luxembourg City, is still a reminder of these times. After the decline of the steel industry in the 1970s, the country focused on establishing itself as a global financial centre and developed into the banking hub it is reputed for. Since the beginning of the 21st century, its governments have focused on developing the country into a knowledge economy, with the founding of the University of Luxembourg and a national space programme, projecting the first involvement in a robotic lunar expedition by 2020.
Luxembourg is a founding member of the European Union, OECD, United Nations, NATO, and Benelux. The city of Luxembourg, which is the country's capital and largest city, is the seat of several institutions and agencies of the EU. Luxembourg served on the United Nations Security Council for the years 2013 and 2014, which was a first in the country's history. In 2016 Luxembourgish citizens had visa-free or visa-on-arrival access to 172 countries and territories, ranking the Luxembourgish passport 15th in the world, tied with countries such as Canada and Switzerland.
The recorded history of Luxembourg begins with the acquisition of Lucilinburhuc (today Luxembourg Castle) situated on the Bock rock by Siegfried, Count of Ardennes, in 963 through an exchange act with St. Maximin's Abbey, Trier. Around this fort, a town gradually developed, which became the centre of a state of great strategic value.
In the 14th and early 15th centuries, three members of the House of Luxembourg reigned as Holy Roman Emperors. In 1437, the House of Luxembourg suffered a succession crisis, precipitated by the lack of a male heir to assume the throne, which led to the territories being sold by Duchess Elisabeth to Philip the Good of Burgundy.
After the defeat of Napoleon in 1815, Luxembourg was disputed between Prussia and the Netherlands. The Congress of Vienna formed Luxembourg as a Grand Duchy within the German Confederation. The Dutch king became, in personal union, the grand duke. Although he was supposed to rule the grand duchy as an independent country with an administration of its own, in reality he treated it similarly to a Dutch province. The Fortress of Luxembourg was manned by Prussian troops for the German Confederation. This arrangement was revised by the 1839 First Treaty of London, from which date Luxembourg's full independence is reckoned.
At the time of the Belgian Revolution of 1830–1839, and by the 1839 Treaty establishing full independence, Luxembourg's territory was reduced by more than half, as the predominantly francophone western part of the country was transferred to Belgium. In 1842 Luxembourg joined the German Customs Union (Zollverein). This resulted in the opening of the German market, the development of Luxembourg's steel industry, and expansion of Luxembourg's railway network from 1855 to 1875, particularly the construction of the Luxembourg-Thionville railway line, with connections from there to the European industrial regions. While Prussian troops still manned the fortress, in 1861, the Passerelle was opened, the first road bridge spanning the Pétrusse river valley, connecting the Ville Haute and the main fortification on the Bock with Luxembourg railway station, opened in 1859, on the then fortified Bourbon plateau to the south.
After the Luxembourg Crisis of 1866 nearly led to war between Prussia and France, the Grand Duchy's independence and neutrality were again affirmed by the 1867 Second Treaty of London, Prussia's troops were withdrawn from the Fortress of Luxembourg, and its Bock and surrounding fortifications were dismantled.
The King of the Netherlands remained Head of State as Grand Duke of Luxembourg, maintaining a personal union between the two countries until 1890. At the death of William III, the throne of the Netherlands passed to his daughter Wilhelmina, while Luxembourg (then restricted to male heirs by the Nassau Family Pact) passed to Adolph of Nassau-Weilburg.
At the time of the Franco-Prussian war in 1870, despite allegations about French use of the Luxembourg railways for passing soldiers from Metz (then part of France) through the Duchy, and for forwarding provisions to Thionville, Luxembourg's neutrality was respected by Germany, and neither France nor Germany invaded the country. But in 1871, as a result of Germany's victory over France, Luxembourg's boundary with Lorraine, containing Metz and Thionville, changed from being a frontier with a part of France to a frontier with territory annexed to the German Empire as Alsace-Lorraine under the Treaty of Frankfurt. This allowed Germany the military advantage of controlling and expanding the railways there.
In August 1914, Imperial Germany violated Luxembourg's neutrality in the war by invading it in the war against France. This allowed Germany to use the railway lines, while at the same time denying them to France. Nevertheless, despite the German occupation, Luxembourg was allowed to maintain much of its independence and political mechanisms.
In 1940, after the outbreak of World War II, Luxembourg's neutrality was again violated when the Wehrmacht of Nazi Germany entered the country, "entirely without justification". In contrast to the First World War, under the German occupation of Luxembourg during World War II, the country was treated as German territory and informally annexed to the adjacent province of the Third Reich. A government in exile based in London supported the Allies, sending a small group of volunteers who participated in the Normandy invasion. Luxembourg was liberated in September 1944, and became a founding member of the United Nations in 1945. Luxembourg's neutral status under the constitution formally ended in 1948, and in 1949 it became a founding member of NATO.
In 1951, Luxembourg became one of the six founding countries of the European Coal and Steel Community, which in 1957 would become the European Economic Community and in 1993 the European Union. In 1999 Luxembourg joined the Eurozone. In 2005, a referendum on the EU treaty establishing a constitution for Europe was held.
Luxembourg is a parliamentary democracy headed by a constitutional monarch. Under the constitution of 1868, executive power is exercised by the Grand Duke and the cabinet, which consists of several other ministers. The Grand Duke has the power to dissolve the legislature, in which case new elections must be held within three months. However, since 1919, sovereignty has resided with the Nation, exercised by the Grand Duke in accordance with the Constitution and the law.
Legislative power is vested in the Chamber of Deputies, a unicameral legislature of sixty members, who are directly elected to five-year terms from four constituencies. A second body, the Council of State (Conseil d'État), composed of twenty-one ordinary citizens appointed by the Grand Duke, advises the Chamber of Deputies in the drafting of legislation.
The Grand Duchy has three lower tribunals (justices de paix; in Esch-sur-Alzette, the city of Luxembourg, and Diekirch), two district tribunals (Luxembourg and Diekirch), and a Superior Court of Justice (Luxembourg), which includes the Court of Appeal and the Court of Cassation. There is also an Administrative Tribunal and an Administrative Court, as well as a Constitutional Court, all of which are located in the capital.
The three Partitions of Luxembourg greatly reduced Luxembourg's territory.
Luxembourg has long been a prominent supporter of European political and economic integration. In efforts foreshadowing European integration, Luxembourg and Belgium in 1921 formed the Belgium–Luxembourg Economic Union (BLEU) to create a regime of inter-exchangeable currency and a common customs. Luxembourg is a member of the Benelux Economic Union and was one of the founding members of the European Economic Community (now the European Union). It also participates in the Schengen Group (named after the Luxembourg village of Schengen where the agreements were signed), whose goal is the free movement of citizens among member states. At the same time, the majority of Luxembourgers have consistently believed that European unity makes sense only in the context of a dynamic transatlantic relationship, and thus have traditionally pursued a pro-NATO, pro-US foreign policy.
Luxembourg is the site of the European Court of Justice, the European Court of Auditors, the Statistical Office of the European Communities ("Eurostat") and other vital EU organs. The Secretariat of the European Parliament is located in Luxembourg, but the Parliament usually meets in Brussels and sometimes in Strasbourg.
The Army is situated on the "Härebierg" which is Luxemburgish and translates to "men's mountain".
Luxembourg maintains a very small army of about 800 soldiers and 100 civil servants to its defense and to NATO. Being a landlocked country, it has no navy.
Luxembourg also lacks an air force, though the 17 NATO AWACS aeroplanes are, for convenience, registered as aircraft of Luxembourg. In accordance with a joint agreement with Belgium, both countries have put forth funding for one A400M military cargo plane.
Luxembourg is one of the smallest countries in Europe, and ranked 169th in size of all the 194 independent countries of the world; the country is about 2,586 square kilometres (998 sq mi) in size, and measures 82 km (51 mi) long and 57 km (35 mi) wide. It lies between latitudes 49° and 51° N, and longitudes 5° and 7° E 
To the east, Luxembourg borders the German Bundesländer of Rhineland-Palatinate and Saarland, and to the south, it borders the French région of Lorraine. The Grand Duchy borders the Belgian Walloon Region, in particular the latter's provinces of Luxembourg and Liège, part of which comprises the German-speaking Community of Belgium, to the west and to the north, respectively.
The northern third of the country is known as the 'Oesling', and forms part of the Ardennes. It is dominated by hills and low mountains, including the Kneiff near Wilwerdange, which is the highest point, at 560 metres (1,837 ft). Other mountains are the 'Buurgplaaz' at 559 metres near Huldange and the 'Napoléonsgaard' at 554 metres near Rambrouch. The region is sparsely populated, with only one town (Wiltz) with a population of more than four thousand people.
The southern two-thirds of the country is called the "Gutland", and is more densely populated than the Oesling. It is also more diverse and can be divided into five geographic sub-regions. The Luxembourg plateau, in south-central Luxembourg, is a large, flat, sandstone formation, and the site of the city of Luxembourg. Little Switzerland, in the east of Luxembourg, has craggy terrain and thick forests. The Moselle valley is the lowest-lying region, running along the southeastern border. The Red Lands, in the far south and southwest, are Luxembourg's industrial heartland and home to many of Luxembourg's largest towns.
The border between Luxembourg and Germany is formed by three rivers: the Moselle, the Sauer, and the Our. Other major rivers are the Alzette, the Attert, the Clerve, and the Wiltz. The valleys of the mid-Sauer and Attert form the border between the Gutland and the Oesling.
According to the 2012 Environmental Performance Index, Luxembourg is one of the world's best performers in environmental protection, ranking 4th out of 132 assessed countries Luxembourg also ranks 6th among the top ten most livable cities in the world by Mercer's.
Luxembourg's stable and high-income market economy features moderate growth, low inflation, and a high level of innovation. Unemployment is traditionally low, although it had risen to 6.1% by May 2012, due largely to the effect of the 2008 global financial crisis. Consequently, Luxembourg's economy was forecast to have negligible growth in 2012. In 2011, according to the IMF, Luxembourg was the second richest country in the world, with a per capita GDP on a purchasing-power parity (PPP) basis of $80,119. Luxembourg is ranked 13th in The Heritage Foundation's Index of Economic Freedom, 26th in the United Nations Human Development Index, and 4th in the Economist Intelligence Unit's quality of life index.
External debt of Luxembourg is $14,385,000,000, or a per capital debt of $24,308. The debt to GDP is 23%. 
The industrial sector, which was dominated by steel until the 1960s, has since diversified to include chemicals, rubber, and other products. During the past decades, growth in the financial sector has more than compensated for the decline in steel production. Services, especially banking and finance, account for the majority of economic output. Luxembourg is the world's second largest investment fund centre (after the United States), the most important private banking centre in the Eurozone and Europe's leading centre for reinsurance companies. Moreover, the Luxembourg government has aimed to attract Internet start-ups, with Skype and Amazon being two of the many Internet companies that have shifted their regional headquarters to Luxembourg.
In April 2009, concern about Luxembourg's banking secrecy laws, as well as its reputation as a tax haven, led to its being added to a "grey list" of nations with questionable banking arrangements by the G20. In response, the country soon after adopted OECD standards on exchange of information and was subsequently added into the category of "jurisdictions that have substantially implemented the internationally agreed tax standard". In March 2010, the Sunday Telegraph reported that most of Kim Jong-Il's $4 billion in secret accounts is in Luxembourg banks. Amazon.co.uk also benefits from Luxembourg tax loopholes by channeling substantial UK revenues as reported by The Guardian in April 2012. Luxembourg ranked third on the Tax Justice Network's 2011 Financial Secrecy Index of the world's major tax havens, scoring only slightly behind the Cayman Islands. In 2013, Luxembourg is ranked as the 2nd safest tax haven in the world, behind Switzerland.
Agriculture is based on small, family-owned farms.
With $171 billion in May 2015, the country ranks eleventh in the world in holdings of U.S. Treasury securities. However, securities owned by non-Luxembourg residents, but held in custodial accounts in Luxembourg, are also included in this figure.
Luxembourg has efficient road, rail and air transport facilities and services. The road network has been significantly modernised in recent years with 147 km (91 mi) of motorways connecting the capital to adjacent countries. The advent of the high-speed TGV link to Paris has led to renovation of the city's railway station and a new passenger terminal at Luxembourg Airport was opened in 2008. Luxembourg city reintroduced trams in December 2017 and there are plans to open light-rail lines in adjacent areas within the next few years.
The telecommunications industry in Luxembourg is liberalised and the electronic communications networks are significantly developed. Competition between the different operators is guaranteed by the legislative framework Paquet Telecom of the Government of 2011 which transposes the European Telecom Directives into Luxembourgish law. This encourages the investment in networks and services. The regulator ILR – Institut Luxembourgeois de Régulation ensures the compliance to these legal rules.
Luxembourg has modern and widely deployed optical fiber and cable networks throughout the country. In 2010, the Luxembourg Government launched its National strategy for very high-speed networks with the aim to become a global leader in terms of very high-speed broadband by achieving full 1 Gbit/s coverage of the country by 2020. In 2011, Luxembourg had an NGA coverage of 75%. In April 2013, Luxembourg featured the 6th highest download speed worldwide and the 2nd highest in Europe: 32,46 Mbit/s. The country's location in Central Europe, stable economy and low taxes favour the telecommunication industry.
It ranks 2nd in the world in the development of the Information and Communication Technologies in the ITU ICT Development Index and 8th in the Global Broadband Quality Study 2009 by the University of Oxford and the University of Oviedo.
Luxembourg is connected to all major European Internet Exchanges (AMS-IX Amsterdam, DE-CIX Frankfurt, LINX London), datacenters and POPs through redundant optical networks. In addition, the country is connected to the virtual meetme room services (vmmr) of the international data hub operator Ancotel. This enables Luxembourg to interconnect with all major telecommunication operators and data carriers worldwide. The interconnection points are in Frankfurt, London, New York and Hong Kong.
Several providers interconnect Luxembourg to the major European data hubs:
- Teralink (P&TLuxembourg, also called EPT Luxembourg: incumbent operator)
- LuxConnect (shareholder : Government) LuxConnect tested the 100G coherent transmission of data signals between Luxembourg and Amsterdam in June 2011.
- Artelis/Cegecom (alternative telecommunications provider in Luxembourg and Saarland)
- Satellite connectivity – Teleports (SES), Broadcasting Center Europe and P&T Luxembourg Teleport.
Luxembourg is connected through an optical DWDM network, called Teralink to several Tier 1 upstream providers like Level3 and Global Crossing. Teralink offers connectivities up to 100 Gbit/s. P&TLuxembourg established a coherent 100Gbit/s IP connection between Frankfurt and Luxembourg with live traffic in 2011.
The Internet IPV6 protocol has been introduced to the country by Restena and P&T Luxembourg.
- LU-CIX is Luxembourg's neutral and commercial Internet Exchange Point which was founded in 2009 by Cegecom, Datacentre Luxembourg, Global Media Systems, INEXIO, LuxConnect, P&T Luxembourg and Root eSolutions. It offers a short, fast and efficient route to the major European Internet networks. In 2012, LIX, the neutral Internet exchange operated by the RESTENA Foundation, merged with LU-CIX. In March 2013, LU-CIX launched the 'Central European Peering Hub' in order to provide the opportunity to its members to connect to other IXs' reseller programs, AMS-IX (Amsterdam), LINX (London), DE-CIX (Frankfurt) and France-IX (Paris), etc.
- LIX is the Luxembourg Ethernet Exchange located in the Tier IV certified eBRC datacentre.
The online portal De Guichet of the Grand Duchy of Luxembourg is a single one-stop online shop for citizens and companies to undertake various administrative operations (procedures, online forms, downloadable forms, and advice) by Internet.
Some 20 data centres are operating in Luxembourg. Six data centers are Tier IV Design certified: three of ebrc, two of LuxConnect  and one of European Data Hub. In a survey on nine international data centers carried out in December 2012 and January 2013 and measuring availability (up-time) and performance (delay by which the data from the requested website was received), the top three positions were held by Luxembourg data centers.
Luxembourg has established itself as one of the leading financial technology (FinTech) hubs in Europe, with the Luxembourg government supporting initiatives like the Luxembourg House of Financial Technology.
The people of Luxembourg are called Luxembourgers. The immigrant population increased in the 20th century due to the arrival of immigrants from Belgium, France, Italy, Germany, and Portugal, with the majority coming from the latter: in 2013 there were about 88,000 inhabitants with Portuguese nationality. In 2013, there were 537,039 permanent residents, 44.5% of which were of foreign background or foreign nationals; the largest foreign ethnic groups were the Portuguese, comprising 16.4% of the total population, followed by the French (6.6%), Italians (3.4%), Belgians (3.3%) and Germans (2.3%). Another 6.4% were of other EU background, while the remaining 6.1% were of other non-EU, but largely other European, background.
Since the beginning of the Yugoslav wars, Luxembourg has seen many immigrants from Bosnia and Herzegovina, Montenegro, and Serbia. Annually, over 10,000 new immigrants arrive in Luxembourg, mostly from the EU states, as well as Eastern Europe. In 2000 there were 162,000 immigrants in Luxembourg, accounting for 37% of the total population. There were an estimated 5,000 illegal immigrants in Luxembourg in 1999.
Largest Groups of Immigrants:
- Portugal (100,460)
- France (38,384)
- Italy (21,877)
- Belgium (21,008)
- Germany (15,056)
- Montenegro (9,065)
- United Kingdom (6,946)
- Serbia (6,282)
- Netherlands (4,734)
- Spain (4,241)
The linguistic situation of Luxemburg is complex. It is characterized by the existence of a language specific to the local population (Luxembourgish), mixed with the historical presence of the two major languages spoken in the surrounding countries (French and German).
Three languages are recognised as official in Luxembourg: French, German and Luxembourgish, a Franconian language of the Moselle region that is also spoken in neighbouring parts of Belgium, Germany and France. Though Luxembourgish is part of the West Central German group of High German languages, more than 5,000 words in the language are of French origin. The first printed sentences in Luxembourgish appeared in a weekly journal, the 'Luxemburger Wochenblatt', in the second edition on 14 April 1821.
Apart from being one of the three official languages, Luxembourgish is also considered the national language of the Grand Duchy; it is the mother tongue or "language of the heart" for the local population.
Due to the historical influence of the Napoleonic Code on the legal system of the Grand Duchy, French is the sole language of the legislation.
French is generally the preferred language of the government, administration and justice. The parliamentary debates are however mostly conducted in Luxembourgish, whereas the written government communications and the official documents (e.g. administrative or judicial decisions, passports etc.) are drafted only in French.
Every resident has the right to address the administration in the language of their choice among the three official languages, and to be answered in that language.
In the everyday life, road signs are only in French, written communications to the public are either only in French or in both French and Luxembourgish, while German is much more present in the media, alongside with French.
Each of the three languages is used as the primary language in certain spheres, without being exclusive. Luxembourgish is the language that Luxembourgers generally use to speak to each other, but it is not often used as the written language. Since the 1980s, however, an increasing number of novels have been written in Luxembourgish. Most official business is carried out in French. German is very often used in much of the media..
Among the numerous expatriate workers, French seems to be the lingua franca, alongside with English in some sectors.
Luxembourg is member of the International Organisation of the Francophonie.
According to a recent survey, French is the language spoken by most residents (99%), followed by Luxembourgish (82%), German (81%) and English (72%).
Although professional life is largely multilingual, French is described by private sector business leaders as the main working language of their company (56%), followed by Luxembourgish (20%), English (18%) and German (6%).
Luxembourg's education system is trilingual: the first years of primary school are in German, before changing to Luxembourgish; while in secondary school, the language of instruction changes to French. Proficiency in all three languages is required for graduation from secondary school, but half the students leave school without a certified qualification, with the children of immigrants being particularly disadvantaged.
In addition to the three national languages, English is taught in compulsory schooling and much of the population of Luxembourg can speak English. The past two decades have highlighted the growing importance of English in several sectors, in particular the financial sector. Portuguese, the language of the largest immigrant community, is also spoken by large segments of the population, but by relatively few from outside the Portuguese-speaking community.
Luxembourg is a secular state, but the state recognises certain religions as officially mandated religions. This gives the state a hand in religious administration and appointment of clergy, in exchange for which the state pays certain running costs and wages. Currently, religions covered by such arrangements are Roman Catholicism, Judaism, Greek Orthodoxy, Anglicanism, Russian Orthodoxy, Lutheranism, Calvinism, Mennonitism and Islam.
Since 1980 it has been illegal for the government to collect statistics on religious beliefs or practices. An estimation by the CIA Factbook for the year 2000 is that 87% of Luxembourgers are Catholic, including the grand ducal family, the remaining 13% being made up of Protestants, Orthodox Christians, Jews, Muslims, and those of other or no religion. According to a 2010 Pew Research Center study 70.4% are Christian, 2.3% Muslim, 26.8% unaffiliated and 0.5% other religions.
According to a 2005 Eurobarometer poll, 44% of Luxembourg citizens responded that "they believe there is a God", whereas 28% answered that "they believe there is some sort of spirit or life force" and 22% that "they do not believe there is any sort of spirit, god, or life force".
The University of Luxembourg is the only university based in Luxembourg. Two American universities maintain campuses in the country, the Miami University Dolibois European Center and Sacred Heart University Luxembourg.
Luxembourg sells the most alcohol in Europe per capita. However, the large proportion of alcohol purchased by customers from neighboring countries contributes to the statistically high level of alcohol sales per capita; this level of alcohol sales is thus not representative of the actual alcohol consumption of the Luxembourg population.
Luxembourg has been overshadowed by the culture of its neighbours. It retains a number of folk traditions, having been for much of its history a profoundly rural country. There are several notable museums, located mostly in the capital. These include the National Museum of History and Art (NMHA), the Luxembourg City History Museum, and the new Grand Duke Jean Museum of Modern Art (Mudam). The National Museum of Military History (MNHM) in Diekirch is especially known for its representations of the Battle of the Bulge. The city of Luxembourg itself is on the UNESCO World Heritage List, on account of the historical importance of its fortifications.
The country has produced some internationally known artists, including the painters Théo Kerg, Joseph Kutter and Michel Majerus, and photographer Edward Steichen, whose The Family of Man exhibition has been placed on UNESCO's Memory of the World register, and is now permanently housed in Clervaux. Movie star Loretta Young was of Luxembourgish descent.
Luxembourg was the first city to be named European Capital of Culture twice. The first time was in 1995. In 2007, the European Capital of Culture was to be a cross-border area consisting of the Grand Duchy of Luxembourg, the Rheinland-Pfalz and Saarland in Germany, the Walloon Region and the German-speaking part of Belgium, and the Lorraine area in France. The event was an attempt to promote mobility and the exchange of ideas, crossing borders physically, psychologically, artistically and emotionally.
Luxembourg was represented at the World Expo 2010 in Shanghai, China, from 1 May to 31 October 2010 with its own pavilion. The pavilion was based on the transliteration of the word Luxembourg into Chinese, "Lu Sen Bao", which means "Forest and Fortress". It represented Luxembourg as the "Green Heart in Europe".
Unlike most countries in Europe, sport in Luxembourg is not concentrated upon a particular national sport, but encompasses a number of sports, both team and individual. Despite the lack of a central sporting focus, over 100,000 people in Luxembourg, out of a total population of near 500,000–600,000, are licensed members of one sports federation or another. The largest sports venue in the country is d'Coque, an indoor arena and Olympic swimming pool in Kirchberg, north-eastern Luxembourg City, which has a capacity of 8,300. The arena is used for basketball, handball, gymnastics, and volleyball, including the final of the 2007 Women's European Volleyball Championship. The national stadium (also the country's largest) is the Stade Josy Barthel, in western Luxembourg City; named after the country's only official Olympic gold medallist, the stadium has a capacity of 8,054.
Notable sportspeople include (see also List of Luxembourgish Sportspeople of the Year):
- Alpine skier Marc Girardelli, World Cup overall champion five times between 1985 and 1993
- Cyclists Nicolas Frantz, winner of the 1927 and 1928 Tours de France; Charly Gaul, winner of the 1956 and 1959 Giro d'Italia and of the 1958 Tour de France; Elsy Jacobs, first ever women's Road World Champion in 1958; and Andy Schleck, winner of the 2010 Tour de France
- Middle-distance runner Josy Barthel, winner of the men's 1500 metres at the 1952 Summer Olympics
- 1961 world water skiing champion Sylvie Hülsemann
- Tennis players Gilles Muller, Anne Kremer and Mandy Minella.
- Football player Jeff Strasser, played in the German Bundesliga from 1999–2006.
Luxembourg cuisine reflects its position on the border between the Latin and Germanic worlds, being heavily influenced by the cuisines of neighboring France and Germany. More recently, it has been enriched by its many Italian and Portuguese immigrants.
Most native Luxembourg dishes, consumed as the traditional daily fare, share roots in the country's folk dishes the same as in neighboring Germany.
The main languages of media in Luxembourg are French and German. The newspaper with the largest circulation is the German-language daily Luxemburger Wort.. Because of the strong multilingualism in Luxembourg, newspapers often alternate articles in French and articles in German, without translation. In addition there are both English and Portuguese radio and national print publications, but accurate audience figures are difficult to gauge since the national media survey by ILRES  is conducted in French.
Luxembourg is known in Europe for its radio and television stations (Radio Luxembourg and RTL Group). It is also the uplink home of SES, carrier of major European satellite services for Germany and Britain.
Due to a 1988 law that established a special tax scheme for audiovisual investment, the film and co-production in Luxembourg has grown steadily. There are some 30 registered production companies in Luxembourg.
- Josy Barthel athlete, Olympic medalist
- Francois Faber cyclist
- Nicolas Frantz cyclist
- Charly Gaul cyclist
- Hugo Gernsback writer, publisher
- Max Jacoby film director, screenwriter
- Will Kesseler artist
- Kim Kirchen cyclist
- Leon Krier architect
- Georges Lentz composer, sound artist
- Michel Lentz poet, wrote national anthem
- Gabriel Lippmann physicist, inventor, nobel laureate
- Marianne Majerus photographer
- Michel Majerus artist
- Arno J. Mayer historian
- Bady Minck artist, filmmaker, producer
- Desiree Nosbusch actress, television presenter
- Andy Schleck cyclist
- Frank Schleck cyclist
- Robert Schuman former French prime minister, one of the founders of European Union
- Edward Steichen photographer, artist, curator
- Michel Theato athlete, Olympic medalist
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