What event lead to the formation of labor unions? how do think labor unions affected the availability of jobs? explain.

The labor movement in the United States grew out of the need to protect the common interest of workers. For those in the industrial sector, organized labor unions fought for better wages, reasonable hours and safer working conditions. The labor movement led efforts to stop child labor, give health benefits and provide aid to workers who were injured or retired.

As the Civil War began, President Lincoln accepted the belief that "individual states should settle the question of slavery," since his number one priority was to preserve the Union at all costs.