Human civilization emerges from the long Dark Age in North America with the rise of Chi-Town and other notable "civilized" city-states, kingdoms and communities. Human civilization also rises from barbarism and begins to make its presence known around this point in other parts of the world. However, many parts of the world remain in barbarism or have been taken over by D-Bees or monsters to this day.
A few other places, like the New German Republic and Republic of Japan, have been civilized nations for years, even decades before North America. Note: Chi-Town created the Apocalyptic calendar, but it was quickly adopted throughout the continent, and later, in other parts of the world.