What was caused by labor unrest in the 1870's and 1880's?

Labor unrest in the 1870s and 1880s led to strikes, protests, and violence as workers demanded better wages, working conditions, and rights. This unrest also contributed to the growth of labor unions and the establishment of labor laws to protect workers. Some notable events include the Great Railroad Strike of 1877 and the Haymarket Affair in 1886.