In the illustrative case of Rome, Italy, in the 1920s and 1930s, suburbs were intentionally created ex novo in order to give lower classes a destination, in consideration of the actual and foreseen massive arrival of poor people from other areas of the country.
so railways
The expanding of the muslim Empire in the years following the Prophet Muhammad's death led to the creation of the caliphates, occupying a vast geographical area and conversion to Islam was boosted by missionary activities particularly those of Imams, who easily intermingled with local populace to propagate the religious teachings.
Answer:
Your answer is C) Lincoln-Douglass Debates; Election of 1860; Secession of Confederate States; Gettysburg Address
This is actually my third time answering the same questions, but from different people of course, also if you need more help on this subject, feel free to contact me.