California Institute of Technology
Spitzer Science Center: Brief History of the Universe
Beginning with an image termed the "Brief History of the Universe" this site examines (briefly, as noted) a timeline of the universe as dictated by the image. The timeline includes information on the big bang theory, the dark ages, the...
PBS
Pbs: Nova Online: History of the Universe
PBS site explores the history of the Universe by providing users with a Universe Timeline exploring different theories. Site also contains links to a tour of the Universe, birth of a Supernova, additional resources and much more.