What Is Climate Change?
Gail Herman, Who HQ & John Hinderliter
What Was the Vietnam War?
Jim O'Connor, Who HQ & Tim Foley
What Was the Ice Age?
Nico Medina, Who HQ & David Groff
What Was the Age of the Dinosaurs?
Megan Stine, Who HQ & Gregory Copeland
What Is the Declaration of Independence?
Michael C. Harris, Who HQ & Jerry Hoare
What Was the Great Depression?
Janet B. Pascal, Who HQ & Dede Putra
What Was Pompeii?
Jim O'Connor, Who HQ & John Hinderliter
What Was the Boston Tea Party?
Kathleen Krull, Who HQ & Lauren Mortimer
What Are Castles and Knights?
Sarah Fabiny, Who HQ & Dede Putra
What Was the Bombing of Hiroshima?
Jess Brallier, Who HQ & Tim Foley