Samuel Gompers founded this labor union in the late nineteenth century, attempting to organize skilled workers to resist abuses by management. The Congress of Industrial Organizations The Knights of Labor The American Federation of Labor The National Labor Union

## Step 1<br />The problem is a historical question about the labor union founded by Samuel Gompers in the late nineteenth century. The options provided are The Congress of Industrial Organizations, The Knights of Labor, The American Federation of Labor, and The National Labor Union.<br />## Step 2<br />Samuel Gompers was a key figure in the American labor movement and the founder of the American Federation of Labor (AFL). The AFL was established in 1886 and was one of the first federations of labor unions in the United States. It was created to organize skilled workers and to advocate for better working conditions, higher wages, and shorter working hours. The AFL was distinct from other labor organizations of the time, such as the Knights of Labor, which aimed to organize both skilled and unskilled workers.<br />## Step 3<br />The Congress of Industrial Organizations (CIO) was another major labor federation, but it was established later, in the 1930s, and was more focused on organizing industrial workers. The National Labor Union was an earlier labor organization, established in the 1860s, and was not directly associated with Gompers.<br />## Step 4<br />Therefore, the correct answer is The American Federation of Labor.