During this era, human technology boomed. In this era, nomads have started farming. Nomads have stopped moving from one place to another. They have started forging metal tools. They also started pastoralism. They have communities and tribe. They were able to create a system on their own.
It would be the "Wagner Act" that allowed labor unions to participate in collective bargaining with business managers, since this was signed by FDR and was thought to be more fair to the individual workers.
Denmark and Norway. Hope this helps
The supply of coal was crucial to the industrial revolution because coal was cheap and affordable and also it was an excellent source of energy. Coal was the best energy source at the time of the industrial revolution and would allow for machines to be coal powered.