A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages and benefits, improving working conditions and safety standards, establishing complaint procedures, developing rules governing the status of employees (including rules on promotions and just-cause conditions for termination), and protecting and increasing the bargaining power of workers.
Trade unions typically fund their head office and legal team functions through regularly imposed fees called union dues. The union representatives in the workforce are usually made up of workplace volunteers who are often appointed by members through internal democratic elections. The trade union, through an elected leadership and bargaining committee, bargains with the employer on behalf of its members, known as the rank and file, and negotiates labour contracts (collective bargaining agreements) with employers.
Unions may organize a particular section of skilled or unskilled workers (craft unionism), a cross-section of workers from various trades (general unionism), or an attempt to organize all workers within a particular industry (industrial unionism). The agreements negotiated by a union are binding on the rank-and-file members and the employer, and in some cases on other non-member workers. Trade unions traditionally have a constitution which details the governance of their bargaining unit and also have governance at various levels of government depending on the industry that binds them legally to their negotiations and functioning.
Originating in the United Kingdom, trade unions became popular in many countries during the Industrial Revolution when employment (rather than subsistence farming) became the primary mode of earning a living. Trade unions may be composed of individual workers, professionals, past workers, students, apprentices or the unemployed. Trade union density, or the percentage of workers belonging to a trade union, is highest in the Nordic countries.
Since the publication of the History of Trade Unionism (1894) by Sidney and Beatrice Webb, the predominant historical view is that a trade union "is a continuous association of wage earners for the purpose of maintaining or improving the conditions of their employment". Karl Marx described trade unions thus: "The value of labour-power constitutes the conscious and explicit foundation of the trade unions, whose importance for the ... working class can scarcely be overestimated. The trade unions aim at nothing less than to prevent the reduction of wages below the level that is traditionally maintained in the various branches of industry. That is to say, they wish to prevent the price of labour-power from falling below its value" (Capital V1, 1867, p. 1069). Early socialists also saw trade unions as a way to democratize the workplace, in order to obtain political power.
A modern definition by the Australian Bureau of Statistics states that a trade union is "an organisation consisting predominantly of employees, the principal activities of which include the negotiation of rates of pay and conditions of employment for its members".
Recent historical research by Bob James puts forward the view that trade unions are part of a broader movement of benefit societies, which includes medieval guilds, Freemasons, Oddfellows, friendly societies, and other fraternal organizations.
A collegium was any association in ancient Rome that acted as a legal entity. Following the passage of the Lex Julia during the reign of Julius Caesar (49–44 BC), and their reaffirmation during the reign of Caesar Augustus (27 BC–14 AD), collegia required the approval of the Roman Senate or the Roman emperor in order to be authorized as legal bodies. Ruins at Lambaesis date the formation of burial societies among Roman Army soldiers and Roman Navy mariners to the reign of Septimius Severus (193–211) in 198 AD. In September 2011, archaeological investigations done at the site of the artificial harbor Portus in Rome revealed inscriptions in a shipyard constructed during the reign of Trajan (98–117) indicating the existence of a shipbuilders guild. Rome's La Ostia port was home to a guildhall for a corpus naviculariorum, a collegium of merchant mariners. Collegium also included fraternities of Roman priests overseeing Sacrificium Romanam (ritual sacrifices), practising augury, keeping scriptures, arranging festivals, and maintaining specific religious cults.
While a commonly held mistaken view holds modern trade unionism to be a product of Marxism, the earliest modern trade unions predate Marx's Communist Manifesto (1848) by almost a century (and Marx's writings themselves frequently address the prior existence of the workers' movements of his time.) The origins of modern trade unions can be traced back to 18th-century Britain, where the Industrial Revolution drew masses of people, including dependents, peasants and immigrants, into cities. Britain had ended the practice of serfdom in 1574, but the vast majority of people remained as tenant-farmers on estates owned by the landed aristocracy. This transition was not merely one of relocation from rural to urban environs; rather, the nature of industrial work created a new class of "worker". A farmer worked the land, raised animals and grew crops, and either owned the land or paid rent, but ultimately sold a product and had control over his life and work. As industrial workers, however, the workers sold their work as labour and took directions from employers, giving up part of their freedom and self-agency in the service of a master. The critics of the new arrangement would call this "wage slavery", but the term that persisted was a new form of human relations: employment. Unlike farmers, workers often had less control over their jobs; without job security or a promise of an on-going relationship with their employers, they lacked some control over the work they performed or how it impacted their health and life. It is in this context that modern trade unions emerge.
In the cities, trade unions encountered much hostility from employers and government groups. In the United States, unions and unionists were regularly prosecuted under various restraint of trade and conspiracy laws, such as the Sherman Antitrust Act. This pool of unskilled and semi-skilled labour spontaneously organized in fits and starts throughout its beginnings, and would later be an important arena for the development of trade unions. Trade unions have sometimes been seen as successors to the guilds of medieval Europe, though the relationship between the two is disputed, as the masters of the guilds employed workers (apprentices and journeymen) who were not allowed to organize.
Trade unions and collective bargaining were outlawed from no later than the middle of the 14th century, when the Ordinance of Labourers was enacted in the Kingdom of England, but their way of thinking was the one that endured down the centuries, inspiring evolutions and advances in thinking which eventually gave workers more power. As collective bargaining and early worker unions grew with the onset of the Industrial Revolution, the government began to clamp down on what it saw as the danger of popular unrest at the time of the Napoleonic Wars. In 1799, the Combination Act was passed, which banned trade unions and collective bargaining by British workers. Although the unions were subject to often severe repression until 1824, they were already widespread in cities such as London. Workplace militancy had also manifested itself as Luddism and had been prominent in struggles such as the 1820 Rising in Scotland, in which 60,000 workers went on a general strike, which was soon crushed. Sympathy for the plight of the workers brought repeal of the acts in 1824, although the Combination Act 1825 restricted their activity to bargaining for wage increases and changes in working hours.