East Berlin in the context of "Humboldt University of Berlin"

The Berlin Wall fell on 9 November 1989 during the Peaceful Revolution, marking the beginning of the destruction of the figurative Iron Curtain, as East Berlin transit restrictions were overwhelmed and discarded. Sections of the wall were breached, and planned deconstruction began the following June. It was one of the series of events that started the fall of communism in Central and Eastern Europe. The fall of the inner German border took place shortly afterward. An end to the Cold War was declared at the Malta Summit in early December, and German reunification took place in October the following year.

German reunification (German: Deutsche Wiedervereinigung), also known as the expansion of the Federal Republic of Germany (BRD), was the process of re-establishing Germany as a single sovereign state, which began on 9 November 1989 and culminated on 3 October 1990 with the dissolution of the German Democratic Republic and the integration of its re-established constituent federated states into the Federal Republic of Germany to form present-day Germany. This date was chosen as the customary German Unity Day, and has thereafter been celebrated each year as a national holiday. On the same date, East and West Berlin were also reunified into a single city, which eventually became the capital of Germany.

The East German government, controlled by the Socialist Unity Party of Germany (SED), started to falter on 2 May 1989, when the removal of Hungary's border fence with Austria opened a hole in the Iron Curtain. The border was still closely guarded, but the Pan-European Picnic and the indecisive reaction of the rulers of the Eastern Bloc started off an irreversible movement. It allowed an exodus of thousands of East Germans fleeing to West Germany via Hungary. The Peaceful Revolution, part of the international revolutions of 1989 including a series of protests by East German citizens, led to the fall of the Berlin Wall on 9 November 1989 and the GDR's first free elections on 18 March 1990, and then to negotiations between the two countries that culminated in a Unification Treaty. Other negotiations between the two Germanies and the four occupying powers in Germany produced the Treaty on the Final Settlement with Respect to Germany, which granted on 15 March 1991 full sovereignty to a reunified German state, whose two parts had previously been bound by a number of limitations stemming from their post-World War II status as occupation zones, though it was not until 31 August 1994 that the last Russian occupation troops left Germany.

The Humboldt University of Berlin (German: Humboldt-Universität zu Berlin, abbreviated HU Berlin) is a public research university in the central borough of Mitte in Berlin, Germany.

The university was established by Frederick William III on the initiative of Wilhelm von Humboldt, Johann Gottlieb Fichte and Friedrich Daniel Ernst Schleiermacher as the University of Berlin (Universität zu Berlin) in 1809, and opened in 1810. From 1828 until its closure in 1945, it was named the (Royal) Friedrich Wilhelm University of Berlin (FWU Berlin; German: Königliche Friedrich-Wilhelms-Universität zu Berlin). During the Cold War, the university found itself in East Berlin and was de facto split in two when the Free University of Berlin opened in West Berlin. The university received its current name in honour of Alexander and Wilhelm von Humboldt in 1949.

The new states of Germany (German: die neuen Länder / die neuen Bundesländer) are the five re-established states of the former German Democratic Republic (GDR) that unified with the Federal Republic of Germany (FRG) with its 10 "old states" upon German reunification on 3 October 1990.

The new states, which were dissolved by the GDR government in 1952 and re-established in 1990, are Brandenburg, Mecklenburg-Western Pomerania, Saxony, Saxony-Anhalt, and Thuringia. The state of Berlin, the result of a merger between East and West Berlin, is usually not considered one of the new states although a number of its residents are former East Germans and some of its areas were in the former East Berlin. There have been 16 states in Germany since reunification.

Chemnitz (German: [ˈkɛmnɪts] ; from 1953 to 1990: Karl-Marx-Stadt [kaʁlˈmaʁksˌʃtat] (lit. 'Karl Marx City'); Upper Sorbian: Kamjenica [ˈkamʲɛnʲit͡sa]; Czech: Saská Kamenice) is the third-largest city in the German state of Saxony after Leipzig and Dresden, and the fourth-largest city in the area of the former East Germany after (East) Berlin, Leipzig, and Dresden.

The city lies in the middle of a string of cities sitting in the densely populated northern foreland of the Elster and Ore Mountains, stretching from Plauen in the southwest via Zwickau, Chemnitz and Freiberg to Dresden in the northeast, and is part of the Central German Metropolitan Region. Located in the Ore Mountain Basin, the city is surrounded by the Ore Mountains to the south and the Central Saxon Hill Country to the north. The city stands on the Chemnitz River, which is formed through the confluence of the rivers Zwönitz and Würschnitz in the borough of Altchemnitz.

The Berlin Wall (German: Berliner Mauer, pronounced [bɛʁˌliːnɐ ˈmaʊɐ] ), officially the Anti-Fascist Protection Rampart, was a guarded concrete barrier that encircled West Berlin from 1961 to 1989, separating it from East Berlin and the German Democratic Republic (GDR; East Germany). Construction of the Berlin Wall was commenced by the government of the GDR on 13 August 1961. It included guard towers placed along large concrete walls, accompanied by a wide area (later known as the "death strip") that contained anti-vehicle trenches, beds of nails and other defenses. The primary intention for the Wall's construction was to prevent East German citizens from fleeing to the West.

The Soviet Bloc propaganda portrayed the Wall as protecting its population from "fascist elements conspiring to prevent the will of the people" from building a communist state in the GDR. The authorities officially referred to the Berlin Wall as the Anti-Fascist Protection Rampart (German: Antifaschistischer Schutzwall, pronounced [antifaˌʃɪstɪʃɐ ˈʃʊtsval] ). Conversely, West Berlin's city government sometimes referred to it as the "Wall of Shame", a term coined by mayor Willy Brandt in reference to the Wall's restriction on freedom of movement. Along with the separate and much longer inner German border, which demarcated the border between East and West Germany, it came to symbolize physically the Iron Curtain that separated the Western Bloc and Soviet satellite states of the Eastern Bloc during the Cold War.

West Berlin (German: Berlin (West) or West-Berlin, German pronunciation: [ˈvɛstbɛʁˌliːn] ) was a political enclave which comprised the western part of Berlin from 1948 until 1990, during the Cold War. Although West Berlin was de jure not part of West Germany, lacked any sovereignty, and was under military occupation until German reunification in 1990, the territory was claimed by the Federal Republic of Germany (FRG). The legality of this claim was contested by the Soviet Union and other Eastern Bloc countries, although West Berlin de facto aligned itself politically with the FRG from May 1949, was thereafter directly or indirectly represented in its federal institutions, and most of its residents were citizens of the FRG.

West Berlin was formally controlled by the Western Allies and entirely surrounded by East Berlin and East Germany. West Berlin had great symbolic significance during the Cold War, as it was widely considered by westerners an "island of freedom." It was heavily subsidized by West Germany as a "showcase of the West." A wealthy city, West Berlin was noted for its distinctly cosmopolitan character, and as a centre of education, research and culture. With about two million inhabitants, West Berlin had the largest population of any city in Germany during the Cold War era.

The old states of Germany (German: die alten Länder / die alten Bundesländer) is a jargon referring to the ten of the sixteen states of the Federal Republic of Germany (FRG) that were part of West Germany and that unified with the eastern German Democratic Republic's five states, which are given the contrasting term new states of Germany. Usage of this terminology usually excludes one other state, Berlin, conterminous with the capital city of the reunified nation which used to be divided, with its western part linked with West Germany.

The old states are Baden-Württemberg, Bavaria, Bremen, Hamburg, Hesse, Lower Saxony, North Rhine-Westphalia, Rhineland-Palatinate, Saarland (from 1957), and Schleswig-Holstein. The state of Berlin, the result of a merger between East and West Berlin, is usually not considered one of the old states although West Berlin was associated with the Federal Republic of Germany, but its status was disputed because of the Four Power Agreement on Berlin.