  The recent Review of Particle Physics [1] includes a new narrow N*(1685)
resonance. Its properties, the narrow width and the strong photoexcitation on
the neutron, are unusual. The paper reviews experimental data which have led to
the evidence for this resonance. Alternative explanations of the phenomenon at
W ~ 1.685 GeV, namely the interference of well-known resonances and the
sub-threshold meson-baryon production, are discussed as well.
