It is the most pivotal events for us. Right now. Who knows what could happen in Freelancer timeline. I am not sure but I think Alliance-Coalition war starts in the 2100's. And for the people if Sirius THAT is the most pivotal event in their history, where maybe billions died in the war, a war that made them run from their own god damn solar system. Just to find out later that it was blown up, killing everything.
Now that you think about it, 1900's were like a walk in a park, eh?