  After a brief recall of the main impacts of stellar rotation on the structure
and the evolution of stars, four topics are addressed: 1) the links between
magnetic fields and rotation; 2) the impact of rotation on the age
determination of clusters; 3) the exchanges of angular momentum between the
orbit of a planet and the star due to tides; 4) the impact of rotation on the
early chemical evolution of the Milky Way and the origin of the
Carbon-Enhanced-Metal-Poor stars.
