The Paris Commune wins out in 1871 instead of being crushed by the French Third Republic, Ireland breaks away from British rule in the 1880s, and the Russian Revolution is just one of many similar revolutions in different countries. Finally Socialism also wins out in the rump U.S., following a revolutionary outbreak in Chicago.
The Paris Commune triumphs over the French Third Republic in 1871, Ireland gains independence from British rule in the 1880s, and the Russian Revolution is just one of many revolutions happening globally. Ultimately, Socialism also wins out in the remaining United States following a revolutionary uprising in Chicago.