What are 3 attempts to form labor unions between 1870-1900s?

Answer 1

I assume you're talking about the USA:

Early Unions
1. Order of the Knights of St. Crispin
The Order of the Knights of St. Crispin was founded in 1867 and claimed 50,000 members by 1870, by far the largest union in the country. But it was poorly organized and soon declined. They fought encroachments of machinery and unskilled labor on autonomy of skilled shoeworkers. One provision in the Crispin constitution explictly sought to limit the entry of "green hands" into the trade. But that failed because the new machines could be operated by semi-skilled workers and produce more shoes than hand sewing.
The first local unions in the United States formed in the late 18th century, but the movement came into its own after the Civil War, when the short-lived National Labor Union (NLU) became the first federation of American unions.
2. Knights of Labor
The first effective labor organization that was more than regional in membership and influence was the Knights of Labor, organized in 1869. The Knights believed in the unity of the interests of all producing groups and sought to enlist in their ranks not only all laborers but everyone who could be truly classified as a producer. The acceptance of all producers led to explosive growth after 1880. Under the leadership of Terence Powderly they championed a variety of causes, sometimes through political or cooperative ventures. Powderly hoped to gain their ends through politics and education rather than through economic coercion. Their big strikes failed and they collapsed in the wake of the Haymarket Riot) of 1886, when their message was confused with that of bomb-making anarchists.
3. Rise of AFL
The Federation of Organized Trades and Labor Unions began in 1881 under the leadership of Samuel Gompers. Its members were different unions. its original goals were to encourage the formation of trade unions and to obtain legislation, such as prohibition of child labor, a national eight hour day, and exclusion of foreign contract workers. Samuel Gompers of the Cigar Makers Union was chosen as the chairman of its Committee on Organization and as a member of its Legislative Committee.
The Federation made some efforts to obtain favorable legislation, but had little success in organizing or chartering new unions. It came out in support of the proposal, traditionally attributed to Peter J. McGuire of the Carpenters Union, for a national Labor Day holiday on the first Monday in September, and threw itself behind the eight hour movement, which sought to limit the workday by either legislation or union organizing.
In 1886, as the relations between the trade union movement and the Knights of Labor worsened, McGuire and other union leaders called for a convention to be held at Columbus, Ohio on December 8th. The Federation of Organized Trades and Labor Unions merged with the new organization, known as the American Federation of Labor or AFL, formed at that convention.
The AFL was formed in large part because of the dissatisfaction of many trade union leaders with the Knights of Labor, an organization that contained many trade unions and which had played a leading role in some of the largest strikes of the era. The new AFL distinguished itself from the Knights by emphasizing the autonomy of each trade union affiliated with it and limiting membership to workers and organizations made up of workers, unlike the Knights.
The AFL grew steadily in the late nineteenth century while the Knights disappeared. Although Gompers at first advocated something like industrial unionism, he retreated from that in the face of opposition from the craft unions that made up most of the AFL. The emphasis made for much stronger locals with which the workers could identify, and derived benefits in terms of insurance, fellowship, and bargaining power."

Answer 2

Labor Unions In 1900s

Answer 3

Labor unions protect workers from being screwed by companies. Think of it this way: if an employee is supposed to be loyal to a company, shouldn't the company be loyal to an employee? Unions force companies to respect their employees. However, some unions have grown too large and only serve their own interests now (like Teamsters.) So I suppose it depends on the union, but in general, I'm for them. And I am neither a WEAK OR STUPID employee.