The Mainverse is a Universe where mappers could agree on and establish lore around. This is originally based on the MON5 mod, which grew into a fully fledged Universe. It is based on real world events and the how the roles of each official nation changed it. It's current earlist most major divergence between our real timeline is in Early 1200s. However, it's major events through history is not prevented. NOTICE: Most Official Nations would have to be dumbed down to avoid having major affects on the maintime stream