Big History is now on Khan Academy! Big History on Khan Academy By Heathe Kyle Yeakley|2017-05-08T18:47:03-04:00April 22nd, 2017|Categories: Big History|0 Comments Share This Story, Choose Your Platform! FacebookXRedditLinkedInEmail About the Author: Heathe Kyle Yeakley Heathe Kyle Yeakley is a Linux systems administrator and an avocational paleontologist.
