Portions of K12's History program for Grades 1 and 2 were written by Susan Wise Bauer, author of The Story of the World: History for the Classical Child (Peace Hill Press, 2001; http://www.welltrainedmind.com/childsworldhistory.html) and coauthor of The Well-Trained Mind (W. W. Norton, 1999; see http://www.welltrainedmind.com/).