Answer:
Explanation:
One thing that may have led to less German immigrants into the united sates may have been a mutual disliking. Parts of Nazi Germany were starting to grow already and many "free" countries like America disagreed with that, even though the war wasn't going to begin till 1939. It seemed the Germans had contradicting views to many of the current Americas. Another reason may be the German power of the Era. It is important to note that Germany was very successful and held major control.
This means that labor is divided between members of the society and everyone specializes in something. Instead of being non-proficient in everything, you become great at something and then work with others.
One reason why it is useful for historians to base certain studies on the analysis of historical periods is because "c. similar events and trend often take place on different places during the same periods," since this can take place due to "cultural diffusion".