The Coronid Reach is a vast realm that constitutes the northern frontier of the Imperium. Although counted as an independent division of such neighboring realms as the Manachean Commonwealth, it has no true administrative capital, the entire Reach being somehow overshadowed by the influence of the principal power in this region, the Agathean Domain. Therefore the history of the Coronid Reach pretty much confuses itself with the history of the 60th Expeditionary Fleet and the conquest of Agathon, although the first world to have been colonised was in fact the later Agri-world of Numinal. Hemmed in by two hostile regions of space, human civilisation expanded along the stable warp-routes that originated at Numinal before spreading to the rest of the Reach. The isolation of the worlds of the C