They called them the den of traitors.
A lot of people came to the West to find gold to the point that the population rose dramatically and allowed territories to apply for statehood. Hope this can help :-D
Because their society is unstable. They allow anyone and everyone in from many different cultures. Hence the cradle part.
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.
