This science white paper addresses the issue of discovering the chemical evolution of the
Galactic bulge, from which we may learn the initial mass function at the time of the formation of
the bulge, the timescale for the initial burst of star formation, any evidence supporting an
extended era of star formation, evidence of very early mergers of massive subcomponents, and
the fraction of its mass that was contributed by late mergers. A further immediate problem
concerns the composition of dwarfs measured from microlensing events versus the abundance
scale measured from giants. A companion White Paper (Clarkson & Rich) addresses a set of
bulge science questions that require observations at very high angular resolution
