The establishment of trade unions in the 19th century was significant as they empowered workers to advocate for better labor conditions and wages. Formed in response to the challenges posed by the Industrial Revolution, unions organized collective negotiations with employers, leading to landmark agreements that established rights like the eight-hour workday and safer working environments. They played a critical role in raising awareness about workers' rights and were instrumental in influencing labor laws. The growth of unions helped shape the modern labor landscape, establishing a legacy of organized labor advocacy that continues today.