  We first discuss recent progress in using the Milky Way globular cluster (GC)
system as a `test-bed' for properties derived from integrated spectra and
stellar population models. Standard techniques may give rise to spuriously high
alpha-element ratios at low metallicities. We then discuss evidence for early
epoch (z > 2) formation for most GCs in galaxies today. Recent accretions of
GCs (and their host galaxy) make a small contribution but recent mergers form
few if any new GCs in today's elliptical galaxies. The early formation of
metal-poor GCs and the bimodality seen in GC specific frequency requires a
`truncation' which may be due to reionization.
