In European history, the Commercial Revolution saw the development of a European economy – based on trade – which began in the 11th century AD and operated until the advent of the Industrial Revolution in the mid-18th century. Beginning c. 1100 with the Crusades, Europeans rediscovered spices, silks, and other commodities then rare in Europe. Consumer demand fostered more trade, and trade expanded in the second half of the Middle Ages. Newly-forming European states, through voyages of discovery, investigated alternative trade routes in the 15th and 16th centuries, which allowed European powers to build vast, new international-trade networks. Nations also sought new sources of wealth and practiced mercantilism and colonialism. The Commercial Revolution is marked by an increase in general commerce, and in the growth of financial services such as banking, insurance and investing.
A chamber of commerce, or board of trade, is a form of business network. For example, a local organization of businesses whose goal is to further the interests of businesses. Business owners in towns and cities form these local societies to advocate on behalf of the business community. Local businesses are members, and they elect a board of directors or executive council to set policy for the chamber. The board or council then hires a President, CEO, or Executive Director, plus staffing appropriate to size, to run the organization.
Hamburg was founded in the 9th century as a mission settlement to convert the Saxons. Since the Middle Ages, it has been an important trading center in Europe. The convenient location of the port and its independence as a city and state for centuries strengthened this position.
The Company of Merchant Adventurers of London was a trading company founded in the City of London in the early 15th century. It brought together leading merchants in a regulated company in the nature of a guild. Its members' main business was exporting cloth, especially white (undyed) broadcloth, in exchange for a large range of foreign goods. It traded in northern European ports, competing with the Hanseatic League. It came to focus on Hamburg.
The New York Chamber of Commerce was founded in 1768 by twenty New York City merchants. As the first such commercial organization in the United States, it attracted the participation of a number of New York's most influential business leaders, including John Jacob Astor, Peter Cooper, and J. Pierpont Morgan. The chamber's members were instrumental in the realization of several key initiatives in the region – including the Erie Canal, the Atlantic cable, and the New York City Transit Authority. The Chamber of Commerce survives today as the Partnership for New York City, which was formed from the 2002 merger of the New York Chamber of Commerce and Industry and the New York City Partnership.
Hamburg City Hall is the seat of local government of Hamburg, Germany. It is the seat of the government of Hamburg and as such, the seat of one of Germany's 16 state parliaments. The Rathaus is located in the Altstadt quarter in the city center, at the Rathausmarkt square, and near the lake Binnenalster and the central station. Constructed from 1886 to 1897, the city hall still houses its original governmental functions with the office of the First Mayor of Hamburg and the meeting rooms for the Parliament and the Senate.
The Hamburg Parliament is the unicameral legislature of the German state of Hamburg according to the constitution of Hamburg. As of 2020 there are 123 sitting members, representing 17 electoral districts. The parliament is situated in the city hall Hamburg Rathaus and is part of the Government of Hamburg.
From about 1590 on, there had been a Portuguese Jewish community in Hamburg, whose qehilla existed until its compulsory merger with the Ashkenazi congregation in July 1939. The first Sephardic settlers were Portuguese Marranos, who had fled their country under Philip II and Philip III, at first concealing their religion in their new place of residence. Many of them had emigrated from Spain in the belief that they had found refuge in Portugal.
The Hanseaten is a collective term for the hierarchy group consisting of elite individuals and families of prestigious rank who constituted the ruling class of the free imperial city of Hamburg, conjointly with the equal First Families of the free imperial cities of Bremen and Lübeck. The members of these First Families were the persons in possession of hereditary grand burghership of these cities, including the mayors, the senators, joint diplomats and the senior pastors. Hanseaten refers specifically to the ruling families of Hamburg, Lübeck and Bremen, but more broadly, this group is also referred to as patricians along with similar social groups elsewhere in continental Europe.
Gustav August Rudolph Crasemann was a Hamburg businessman and parliamentarian.
Joh. Berenberg, Gossler & Co. KG, commonly known as Berenberg Bank and also branded as simply Berenberg, is a multinational full-service private and merchant bank headquartered in Hamburg, Germany.
Association of German Chambers of Industry and Commerce is a German 'chamber,' similar to an English guild but is required under German law and provides political influence of a trade union. This organization was formerly known as the Deutscher Industrie- und Handelstag or DIHT.
Johannes Georg Andreas Versmann was a German lawyer and politician. He was the first president of the new Bürgerschaft of Hamburg in 1859 and dominated the politics of the Hanseatic state as first or second mayor between 1887 and 1899.
Ludwig Erdwin Seyler was a Hamburg merchant, merchant banker and politician. He was by marriage a member of the Hanseatic Berenberg dynasty, and was a partner in the Hamburg firm Joh. Berenberg, Gossler & Co. for 48 years (1788–1836), for 46 years as the company's senior partner. The company name was amended in 1791 to reflect him becoming a partner and has remained unchanged since; he "is practically the 'Co.' in the company name." Seyler was one of the first merchants and bankers from modern Germany to establish trade relations with the United States and East Asia. Much of the company's wealth derived from their position as leading sugar importers from the Americas to the North European market, in combination with their activities as merchants bankers. Seyler was one of Hamburg's leading merchants during the Napoleonic Wars and held several political offices. He served as a member of the French-appointed council of Hamburg and after the Napoleonic Wars as the President of the Commercial Deputation, one of the city-state's main political bodies. Ludwig Seyler was a son of the Swiss-born theatre director Abel Seyler and a son-in-law of the bankers Johann Hinrich Gossler and Elisabeth Berenberg through his marriage to their eldest daughter Anna Henriette Gossler.
The Trieste Commodity Exchange was founded in 1755 by Empress Maria Theresa. It is one of the oldest commodity exchanges in the world.
The Schütting, situated on the Marktplatz in Bremen, initially served the city's merchants and tradesmen as a guild house. In 1849, it became Bremen's chamber of commerce. Since 1973, it has been under monument protection. It lies on the south site of the Bremen marketplaces directly across from the town hall.
The Bremen Exchange in Bremen was one of the eight German Regional stock exchanges until 2007. In 2000 it ceased to use the Open outcry method and in 2007 the last operative units were closed. The property of exchange's holding company went to the newly established Foundation of the Bremen Stock Exchange, a non-profit organisation which is intended to benefit scholarship, research, and culture.
Robert Kayser was a Hamburg industrialist and banker.
Gustav Heinrich Kirchenpauer was a jurist, journalist and natural history researcher. His zoological publications are considered to be a significant contribution to knowledge of hydroids and bryozoans.
The accession of the city state of Hamburg to the German Customs Union, commonly known as Zollverein, in 1888 was the culmination of a project for the economic and monetary union of Germany, stretching back to 1819. In that year Schwarzburg-Sondershausen joined Prussia’s internal customs union, the first other state to do so and the first of many to follow.
Hamburg 
