•Discovery of Active
 Galactic Nuclei (AGN)
 –Seyfert Galaxies and
 Radio Sources
 •The Unified Model
 –Black Holes in
 Galaxies, disks, orientation, +
 •Quasars
 –Distances and
 Relativistic Redshifts
 –Quasars as extreme
 AGN
 –Evolution of
 Quasars/Galaxies
 –Gravitational Lensing