I think it's quite important that the game, in order to understand the period, starts before 1848. No, nothing interesting is happening. The world is in a collective sigh of relief after Napoleon has been dealt with. The revolutions of 1848, showing that liberalism cannot be contained by force, go on and mean very interesting things for the period. It would be a misnomer to start with them in full flow, as if that's just something that happens, or afterwards, as if that was how the period was viewed at the time. What's important is that the player gets the sense that there is revolutionary fervour under the lid of society, and to watch that build up and, then, eventually erupt over Europe. There is this period between 1816 and 1848 where monarchies felt that they were secure ideologically; they had contained the French revolution, barely, but, ultimately, that revolution was a failure, and we had returned to the status quo. Europe is in concert, conducted now primarily by Britain, and the status quo they work so hard to maintain is definitely not one of revolution. This false sense of security, and the massive upheaval that the revolutions brought, with it's German nationalism, the rise of nationalism in the balkans, etc, is very important to the way history progresses through the period.
It would be wonderful to have the revolutions set in motion, but the build up period is necessary.