The establishment of Labor Day was a result of efforts by which group?

The establishment of Labor Day is closely linked to the efforts and advocacy of labor unions, which emerged in the late 19th century as a response to the challenging working conditions faced by workers. Labor unions played a pivotal role in organizing workers to demand fair wages, reasonable working hours, and safer working conditions.

Through strikes, rallies, and political advocacy, labor unions brought attention to the plight of workers, and one of their significant achievements was the designation of Labor Day as a national holiday to celebrate the contributions of labor. The first Labor Day was celebrated on September 5, 1882, in New York City, organized by the Central Labor Union.

As unions continued to gain traction, their influence helped convince politicians and lawmakers of the necessity to recognize Labor Day officially, leading to its federal recognition in 1894. This movement emphasized solidarity among workers and highlighted labor's importance to the economy and society.

In contrast, the other groups listed, such as political activists, corporate leaders, and the judiciary, played different roles in the broader context of labor relations, but it was the organized efforts of labor unions that directly led to the establishment and recognition of Labor Day as a holiday.