The Cosmic Dawn Center (DAWN) is a new international basic research center supported by the Danish National Research Foundation. DAWN is located in Copenhagen at the Niels Bohr Institute, University of Copenhagen, and at the National Space Institute of the Danish Technical University (DTU-Space). The center is dedicated to uncovering how and when the first galaxies, stars and black holed formed, through observations with the prime telescopes of the next decade (ALMA, JWST, Euclid, E-ELT, HST) as well as through theory and simulations.