The Multiverse, also known as the Collection of Realities, Multispace, Polyverse, Multiuniverse, is an endless, spatially, and most infinite collection of alternate realities which share a universal hierarchy and revealed to be a subsection of the larger Omniverse. A large variety of these universes were originated as forms of divergence from other realities, where an event, with different possible outcomes gives rise to different universes, one for each outcome. Some can seem to be taking place in the past or future, due to differences in how time passes in each universe.
External Links[]
Multiverse on the Marvel Wiki