Some history

2230: The Galactic Civil War started between the forces of the Core Planet and of the Colonies

Human Population: 263.4 billion people

2245: The War is ever shifting, both sides are desperate; Everyone is forced to join the army

Human Population: 42.9 billion people

2246: The Core Planet starts operation New World

Human Population: 35.8 billion people

2247: New World scientists make a breakthrough

Human Population: 31.6 billion people

2248: Scientist rebel, operation New World does not go as planned

Human Population: 27.8 billion people

2249: The Core Planet is failing, they have no choice, they commence operation New World

Human Population: 22.6 billion people

2250: The people of the Core Planet have disappeared, where to nobody knows.

Human Population: 14.8 billion people