C Germanys attack on Poland. while not the first act of hostility by the Germans, the attack on Poland was the first and most clean bush to war.
One factor that led to the establishment of organized communities was simply the size of the migration movements, especially from the South, that required "grids" to be formed in many cities in the North.
Answer:
The historical circumstances that led to the Industrial Revolution was the first World War. After the first world war, the world was desparate to create new inventions and leave behind their old ways. Some of the first inventions after the war were Television and Fighter Planes. This was a political endeavor because there were many who did not want to see change happen, but the conservatives are known for driving progress forward and sparking innovation. The economic effects were grave as the industrial revolution that took place after world war one directly led to the great depression of the 1940s. The social effects meant that people were more disconnected than ever, no one ever left their home they did their shopping on qvc, and we have seen a decline in society ever since.
Explanation:
This is an analysis of the political and economic benefits of the Industrial Revolution.