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.

2019: New Rule in Colorado Springs, CO
The origins of the labor movement lay in the formative years of the American nation, when a free wage-labor market emerged in the artisan trades late in the colonial period. The earliest recorded strike occurred in 1768 when New York journeymen tailors protested a wage reduction. The formation of the Federal Society of Journeymen Cordwainers (shoemakers) in Philadelphia in 1794 marks the beginning of sustained trade union organization among American workers.
Answer: Ethiopia won its right for independence when Italy attempted to conquer it around the turn of the century. While Liberia was never challenged because it was established by Americans for freed slaves so it was not tapered with because of its long his of a pocket state of the US.