  The extraction of neutrino oscillation parameters requires the determination
of the neutrino energy from observations of the hadronic final state. The use
of nuclear targets then requires the use of event generators to isolate the
interesting elementary processes and to take experimental acceptances into
account. In this talk I briefly summarize the history of event generators and
their use in nuclear physics, talk briefly about the generators used in the
neutrino community and then discuss future necessary developments.
