The Early Universe (Chapter I)

Timeline (in order)
FOR CHAPTER II: First Stars
 * Big Bang (0 seconds) (13.7 billion years ago)
 * Superforce (10^-43 seconds)
 * Inflation Era (10^-35 seconds)
 * Electroweak Force (10^-30 seconds)
 * Early Particles (10^-29 seconds)
 * Lepton Era (1 millisecond)
 * Opaque Era (200 seconds)
 * First Atoms (~250,000-300,000 years)
 * Dark Ages (~400,000 years)