An alternative history of success rather than decline anf fall. The actual history is set out and the alternative history with Old Time Lines (OTL) for reference. It is a vivid narrative, deeply researched, full of events and people, great and minor igur6es who come to life. It is a story of division and controversy concerning imperial and dynastic ambition and struggle, often caustic family relationships, cultural and religious disputes with surviving paganism and the classical philosophy of Neo-Platonism, and exandng Christianity in church and state in both Empires. The Empires are expanding in Europe, the Middle East and Africa. Division and crisis is followed by restoration, more division but finally re-unification.