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.
Very artistic. It was a time where many romantic pieces of writing were written
John F. Kennedy was born on May 29, 1917
Are you sure you typed all the choices? All three of those things were things that happened following the German invasion of the USSR during World War II. What didn't happen was a German victory. The war between Germany and the USSR on the Eastern Front was long and brutal, costing many lives. But the Soviet Union eventually prevailed and then advanced against Germany itself.