  We use a cosmological galactic evolutionary approach to model the Milky Way.
A detailed treatment of the mass aggregation and dynamical history of the
growing dark halo is included, together with a self consistent physical
treatment for the star formation processes within the growing galactic disc.
This allows us to calculate the temporal evolution of star and gas surface
densities at all galactic radii, in particular, the star formation history
(SFH) at the solar radius. A large range of cosmological mass aggregation
histories (MAHs) is capable of producing a galaxy with the present day
properties of the Milky Way. The resulting SFHs for the solar neighbourhood
bracket the available observational data for this feature, the most probable
MAH yielding the optimal comparison with these observations. We also find that
the rotation curve for our Galaxy implies the presence of a constant density
core in its dark matter halo.
