Answer: Charles the Great.
Explanation:
Charlemagne has crowned Christmas in 800 AD. The ecclesiastical question was the most important in Europe in those decades, and Charles the Great was the most capable ruler in Europe.
Consequently, the pope turned to the ruler of the enormous European Empire at that moment. Some historians also call him the "Greatest Christian of all time."
A. Whether the federal government should have the power to regulate slavery
The correct answer to this open question is the following.
The dates associated with the industrial revolution are the following. The Industrial Revolution is considered to be started in 1750 and ended in 1914. We have to consider that there were two periods that historians mark as the First Industrial Revolution and the Second Industrial Revolution. During the first period (1750-1850), industries manufactured more raw materials and natural resources. During the second period (1850-1914), industries focused on different goods such as soil and steel.
Better jobs & opportunities.
A push factor would be like famine or disease in the country, etc.
In general, it was an increase in the service industry that led to a decline in labor union membership, since many of these workers don't need representation.