Start Dating the action in great expectations a new chronology

Dating the action in great expectations a new chronology

The Horus Heresy is in many ways the founding event of the Imperium of Man as it now exists.

Amongst the early Imperial Army units that saw action during the Unification Wars were such venerable regiments as the Geno Five-Two Chiliad, which would become one of the oldest and most respected regiments within the Imperial Army.

During this 5,000 standard-year-long period of anarchy, fear and violence, Old Earth's once unified planetary government had completely broken down and been divided into dozens of warring states of so-called techno-barbarians.

Continuous warfare raged across the surface of Terra for 2,500 years, beginning in the late 27th Millennium.

When the Unification Wars were complete around the year 800.