After the fall of the First Empire, its colonies went into a period known as the Isolationist Period. Colonies closed themselves off from others and travelers caught outside the colonies were forced to remain outside in the wilderness. This was a period of bloodshed and terror. But also an important period, as it was the time when the individual nations of Southfield grew independently from each other. It is still debated by the scribes and historians how long this period lasted, but the general belief is that it ended when regional commerce and progress began to pick up in the 23,000 BE.