Trier University of Applied Sciences

Trier was one of the three Regierungsbezirke of Rhineland-Palatinate, Germany, located in the west of the state. The region was created in 1815 as part of the Prussian Rhineland. Until 1920 the bulk of what then became the Territory of Saar Basin was part of the Trier Region. Only the east of the Saar Territory, today's Saar-Palatinate district, formerly the western fringes of the then Bavarian Rhenish Palatinate, was previously no part of the Trier Region. In April 1937 the St. Wendel-Baumholder district, formed in 1920 from those parts of the St. Wendel district that had not been seceded to the Saar Territory, was dissected from the Trier Region and merged in the new Birkenfeld district within the Koblenz Region. After the Second World War the French military government several times extended the Saar area before forming the Saar Protectorate, also including additional 109 municipalities belonging until July 1946 to the Trier Region and some to the Koblenz Region. Koblenz Region's former areas make up part of today's St. Wendel district in the Saarland. In December 1946, when a new customs boundary dissected the Saar Protectorate (later becoming the Saarland) from the area under the Allied Control Council over Allied-occupied Germany, the Trier Region with its then remaining territory had become one of the then five regions forming the new state of Rhineland-Palatinate, founded in August 1946. Later, the French occupation government again redeployed some municipalities – some returned to Allied-occupied Germany, some newly annexed to the protectorate – between the Saar area and the new state of Rhineland-Palatinate in 1947 and 1949, before the border was finally fixed. Since 2000, the employees and assets of the Bezirksregierungen (i.e. regional administrations) form the Aufsichts- und Dienstleistungsdirektion Trier (ADD; Supervisory and Service Directorate Trier) and the Struktur- und Genehmigungsdirektionen (SGD; Structural and Approval Directorates) Nord in Koblenz and Süd in Neustadt (Weinstraße). These administrations execute their authority over the whole state, i. e. the ADD Trier oversees all schools.

The Karl Marx House museum (German: Karl-Marx-Haus) is a biographical and writer's house museum in Trier (Rhineland-Palatinate, Germany). In 1818, Karl Marx, the father of Marxism, which influenced both modern socialism and communism, was born in the house. It is now a museum about Karl Marx's life and writings as well as the history of communism.

The St. Simeon’s Collegiate Church [German: Simeonstift] was a collegiate church in Trier, Germany, near the Roman city gate of the Porta Nigra [Latin, “Black Gate”]. Named after the Greek monk, St. Simeon of Trier, it is now a city museum in the former collegiate church’s buildings under the name, Stadtmuseum Simeonstift [City Museum of the Simeonstift]. The church was created in 1037. In 1028 Simeon of Trier settled at the Porta Nigra as a hermit. He was supposed to have walled himself up there at the gate’s east tower. After his death on 1 June 1035, he was buried in his room on the ground floor. In the same year, probably for Christmas, he was canonized by Pope Benedict IX, in one of the first canonizations ever made by a Pope. In honor of the new saint, they built the Simeonstift and converted the former tower to a Doppelkirche [German, “twin church”]. The Archbishop of Trier at that time, Poppo von Babenberg, personally had known the hermit and travelled with him. But a certificate of incorporation of the Simeonstift could not be obtained from him and it was probably never given. However, recent research showed that the church was founded soon after the canonization of Simeon. The Simeonstift was a two-story cloister in four wings with a dormitory in the north wing and a refectory in the west wing. According to the dendrochronological findings, the north wing dates from 1040. The first reliable documentation is a document of 1048, which proves the existence of a provost’s office and therefore the existence of a collegiate church’s charter. Emperor Henry IV in 1098 confirmed all his possessions to the Simeonstift and granted, namely, more than sixty properties and privileges to it.The doppelkirche conversion of the Porta Nigra was reversed more than 750 years later, in 1804, by the order of Napoleon. Since then, the city gate has reverted almost to its original Gallo-Roman condition. Only the Romanesque east side of the choir still testifies from the outside to the fact that the Porta Nigra was once an imposing church.

The Roman Bridge (German: Römerbrücke) is an ancient structure in Trier, Germany, over the Moselle. It is the oldest standing bridge in the country, and the oldest Roman bridge north of the Alps. The nine bridge pillars date from the 2nd century AD, replacing two older, wooden bridges that date at least as far back as 17 BC. In Roman times, tossing a coin off of the bridge into the Moselle was an offering of good luck. The upper part was renewed twice, in the early 12th and in the early 18th century, after suffering destruction in war. Along with other Roman and Early Gothic sites in Trier, the bridge was inscribed on the UNESCO World Heritage List in 1986 because of its historical importance and architecture.

Trier ( TREER, German: [tʁiːɐ̯] ; Luxembourgish: Tréier [ˈtʀəɪɐ] ), formerly and traditionally known in English as Trèves ( TREV, French: [tʁɛv]) and Triers (see also names in other languages), is a city on the banks of the Moselle in Germany. It lies in a valley between low vine-covered hills of red sandstone in the west of the state of Rhineland-Palatinate, near the border with Luxembourg and within the important Moselle wine region. Founded by the Celts in the late 4th century BC as Treuorum and conquered 300 years later by the Romans, who renamed it Augusta Treverorum ("The City of Augustus among the Treveri"), Trier is considered Germany's oldest city. It is also the oldest seat of a bishop north of the Alps. Trier was one of the four capitals of the Roman Empire during the Tetrarchy period in the late 3rd and early 4th centuries. In the Middle Ages, the archbishop-elector of Trier was an important prince of the Church who controlled land from the French border to the Rhine. The archbishop-elector of Trier also had great significance as one of the seven electors of the Holy Roman Empire. Because of its significance during the Roman and Holy Roman empires, several monuments and cathedrals within Trier are listed as a UNESCO World Heritage Site.With an approximate population of 110,000, Trier is the fourth-largest city in its state, after Mainz, Ludwigshafen, and Koblenz. The nearest major cities are Luxembourg City (50 km or 31 mi to the southwest), Saarbrücken (80 kilometres or 50 miles southeast), and Koblenz (100 km or 62 mi northeast). The University of Trier, the administration of the Trier-Saarburg district and the seat of the ADD (Aufsichts- und Dienstleistungsdirektion), which until 1999 was the borough authority of Trier, and the Academy of European Law (ERA) are all based in Trier. It is one of the five "central places" of the state of Rhineland-Palatinate. Along with Luxembourg, Metz and Saarbrücken, fellow constituent members of the QuattroPole union of cities, it is central to the greater region encompassing Saar-Lor-Lux (Saarland, Lorraine and Luxembourg), Rhineland-Palatinate, and Wallonia.

St. Gangolf's Church is a Roman Catholic church in Trier, Germany. It is dedicated to St. Gangulphus. After Trier Cathedral, it is the second oldest church building in the city.

The Porta Nigra (Latin for black gate), referred to by locals as Porta, is a large Roman city gate in Trier, Germany. It is a UNESCO World Heritage Site.The name Porta Nigra originated in the Middle Ages due to the darkened colour of its stone; the original Roman name has not been preserved.

The Theater Trier is the municipal theatre of Trier, Rhineland-Palatinate, offering opera and musical, dance and drama. The company dates back to 1802. The current house was completed in 1964, and needs renovation. The director (Intendant) since 2018 is Manfred Rolf Langner Since 1995, the theatre has run a series of unknown operas, initiated by Heinz Lukas-Kindermann. It included world premieres such as Zemlinsky's Sarema, Die unendliche Geschichte by Siegfried Matthus, and Fausta by Heinz Heckmann, German premieres such as The Voyage by Philip Glass, and revivals of neglected repertoire such as Karl Goldmark's Merlin and Koanga by Frederick Delius.

The Barbara Baths (German: Barbarathermen) are a large Roman bath complex in Augusta Treverorum, modern-day Trier, Germany. Stretching over 42,000 square meters, it is the largest Roman bath north of the Alps. Along with other sites in Trier, the bath complex was designated a UNESCO World Heritage Site in 1986 as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier site, because of its historical importance and sprawling architecture.

The Diocese of Trier, in English historically also known as Treves ([tɾivz]) from French Trèves, is a Latin Church ecclesiastical territory or diocese of the Catholic church in Germany. When it was the archbishopric and Electorate of Trier, it was one of the most important states of the Holy Roman Empire, both as an ecclesiastical principality and as a diocese of the church. Unlike the other Rhenish dioceses—including Mainz and Cologne–Trier was the former Roman provincial capital of Augusta Treverorum. Given its status, Trier has continuously been an episcopal see since Roman times and is one of the oldest dioceses in all of Germany. The diocese was elevated to an archdiocese in the time of Charlemagne and was the metropolitan for the dioceses of Metz, Toul, and Verdun. After the victory of Napoleon Bonaparte of France, the archdiocese was lowered to a diocese and is now a suffragan in the ecclesiastical province of the Archdiocese of Cologne. The diocesan cathedral is the Cathedral of Saint Peter. The Cathedral Chapter retains the right to elect the bishop, rather than selection by papal appointment.

The High Cathedral of Saint Peter in Trier (German: Hohe Domkirche St. Peter zu Trier), or Trier Cathedral (German: Trierer Dom), is a Roman Catholic cathedral in Trier, Rhineland-Palatinate, Germany. It is the oldest church in Germany and the largest religious structure in Trier, notable for its long life span and grand design. The central part of the nave was built of Roman brick in the early fourth century, resulting in a cathedral that was added onto gradually in different eras. The imposing Romanesque westwork, with four towers and an additional apse, has been copied repeatedly. The Trier Cathedral Treasury contains an important collection of Christian art. In 1986 the church was listed as a UNESCO World Heritage Site, as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier.

The Liebfrauenkirche (German for Church of Our Lady) in Trier, is, according to UNESCO, "the earliest church built in French High Gothic style outside France." It is designated as part of the Roman Monuments, Cathedral of St Peter and Church of Our Lady in Trier UNESCO World Heritage Site. The Trier Dom (cathedral) is next to it, and the two buildings share a common wall.