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Omega Centauri appears to be the stripped nucleus of one of the largest satellite galaxies that has fallen into the Milky Way. Yet the formation history of Omega Centauri is poorly understood due to the complexity of its stellar populations. We propose to obtain WFC3-UVIS imaging to measure proper motions and use UV photometry to constrain stellar abundances and ages for hundreds of thousands of stars within Omega Centauri.s effective radius. In combination with a MUSE spectral mosaic that will provide star-by-star metallicity and radial velocity measurements comma we will create and publicly release an unprecedented catalog of 3-D stellar velocities comma age estimates comma and abundance information. This combination of kinematic and stellar population information will enable us to study the details of both how and when Omega Centauri formed. These results will provide insight on the galaxy in which Omega Centauri formed and its interaction with the Milky Way comma and will serve as a template for understanding the formation and tidal stripping of nuclear star clusters.