In the bosonized version of two-dimensional theories nontrivial bounda
ry conditions (topology) play a crucial role. They are inevitable if o
ne wants to describe nonsinglet states. In Abelian bosonization, color
is the charge of a topological current in terms of a nonlinear meson
field. We show that confinement appears as the dynamical collapse of t
he topology associated with its nontrivial boundary conditions.