Just The FactsTM It s About Time is a two-volume series that helps children understand how we measure time in our daily lives and how we measure historic time. The series explores concepts of time and chronology and expla... more »ins in simple terms units of time measurement. Historic Time expands the concept of time into the larger units of years, decades, centuries, and eras. The video explains the meaning of generations and ancestors and illustrates where the viewer fits into the family history. It explores the concept of timelines as a way to measure years, decades, and centuries. A discussion of how we number centuries follows, with reference to such historic events as Columbus discovery of America, astronauts landing on the moon, and the turn of the century in 2001. The concepts of C.E. (A.D.) and B.C.E. (B.C.) are also introduced in this informative program that will enhance understanding of historic time.« less