Frankfurt am Main, English Frankfurt on the Main, city, Hessen Land (state), western Germany. The city lies along the Main River around 19 miles (30 km) upstream from its intersection with the Rhine River at Mainz. Pop. (2011) city, 667,925; (2000 est.) urban agglom., 3,681,000.There is proof of Celtic and Germanic settlements in the city dating from the first century BCE, just as Roman stays from the first and second hundreds of years CE. The name Frankfurt ("Ford [Passage or Crossing] of the Franks") presumably emerged around 500 CE, when the Franks drove the Alemanni south, however the primary composed notice of Franconofurt originates from Charlemagne's own biographer, Einhard, in the late eighth century. The Pfalz (royal mansion) filled in as a significant imperial home of the East Frankish Carolingians from the ninth century through later medieval occasions. In the twelfth century the Hohenstaufen line raised another stronghold in Frankfurt and walled the town. The Hohenstaufen ruler Frederick I (Frederick Barbarossa) was chosen lord there in 1152, and in 1356 the Golden Bull of Emperor Charles IV (the constitution of the Holy Roman Empire) assigned Frankfurt as the perpetual site for the appointment of the German rulers. 

Frankfurt am Main was a free magnificent city from 1372 until 1806, when Napoleon I made it the seat of government for the ruler primate of the Confederation of the Rhine. In 1810 the city turned into the capital of the Grand Duchy of Frankfurt, made by Napoleon. From 1815, when Napoleon fell, Frankfurt was again a free city, where in 1848–49 the Frankfurt National Assembly met. From 1816 to 1866 the city was the seat of the German Bundestag (Federal Diet) and in this way the capital of Germany. After the Seven Weeks' War in 1866, Frankfurt was added by Prussia and along these lines lost its free-city status. It was simply after its coordination into a unified Germany that Frankfurt formed into a huge modern city. 

Until World War II, Frankfurt's Old Town, which had grown up around the magnificent mansion, was the biggest medieval city still unblemished in Germany. The Old Town was for the most part pulverized by Allied shelling efforts in 1944, notwithstanding, and was in this manner revamped with multistory places of business and other current structures. Among the city's most well known old structures are the Römer ("the Roman"; previously the site of the Holy Roman head's crowning celebration functions and now Frankfurt's city corridor) and two other gabled houses on the Römerberg (the city square encompassing the Römer). Other chronicled milestones incorporate the 155-foot-(47-meter-) tall Eschenheimer Tower (1400–28); the red sandstone church building, which was committed to St. Bartholomew in 1239; and the Paulskirche, which was the gathering spot of the main Frankfurt National Assembly.