Why were simple farmers drawn to urban area's for work in the factories to avoid the labor on the farms to protest the slave system of farms for a chance to get an education

What was the main argument of plessy in plessy v. ferguson

Is this statement true or false? before 1850, workers in american mines, mills, and factories were poorly paid, but their safety on the job was always protected by strict laws.

The threat of foreign intervention to restore louis xvi to the throne caused the french revolution to ?