I would have to go with Completion of the transcontinental railroad in 1869
The basic concepts of socialism are as follows; the main idea is that people should live in an egalitarian society where everybody would contribute as much as he can and take as much as he needs, this would give us a society where everybody would be equally well off and nobody would have less. Everything would also be state owned - this has been a solution that happened in the past.
In my opinion, pure socialism cannot succeed but perhaps using some things from it could be very beneficial.
The Ottoman Empire contributed indirectly to the start of World War I by Balkan calls for independence, which contributed to instability in the region.
Massachusetts Bay, Maryland, Virginia, New York, North Carolina, Delaware, Pennsylvania, New Jersey, South Carolina, New Hampshire, Georgia, Connecticut, and Rhode Island/Providence Plantations.
You didn’t provide any multiple chooses to the question so I can’t exactly help.
