2012

Back in 2012 (IRL) the Mayan calendar stopped. People assumed it was the end of the world. Well in siege universe it was, but only the world as they knew it. Another solar system crashes into our own, and the rest is pretty uncertain yet. (discuss what might happen here)

The human race reaches near extinction and is force to start again. All is forget about the past of our planet, only the ruins that where left behind.