  I discuss singular spacetimes in the context of the geometrized formulation
of Newtonian gravitation. I argue first that geodesic incompleteness is a
natural criterion for when a model of geometrized Newtonian gravitation is
singular, and then I show that singularities in this sense arise naturally in
classical physics by stating and proving a classical version of the
Raychaudhuri-Komar singularity theorem.
