43 books in series

What was...?

What was...? is a 29-book series with 43 primary works first released in 2013 with contributions by Patricia Brennan Demuth, Kathleen Krull, Janet B. Pascal, Joan Holub, Who H.Q., Jim O'Connor, Pam Pollack, Meg Belviso, Who Hq, Judith St. George, Gail Herman, Megan Stine, Gail Herman, Deborah Hopkinson, Sarah Fabiny, Nico Medina, Jill Abramson, Douglas Yacka, Sherri L. Smith, Varian Johnson, Jess M Brallier, Catherine Daly, Jake Murray, Ben Hubbard, Gina Shaw, Steve Korté, Dorothy Hoobler, and Thomas Hoobler.

What Was Stonewall?
What Was the Alamo?
What Is the Statue of Liberty?
What Was Pearl Harbor?
What Is the Women's Rights Movement?
What Are Castles and Knights?
What Was the Boston Tea Party?
Cover 3

What Is NASA?

What Was the Berlin Wall?
What Was the Great Depression?
What Is the Civil Rights Movement?
What Were the Salem Witch Trials?
What Was the Hindenburg?
What Was Woodstock?
Cover 7

What Are the Paralympic Games?

What Was Ellis Island?
What is the constitution?
Cover 6

What Was Pompeii?

What Was the Wild West?
What Is the Panama Canal?
Cover 5

What Were the Negro Leagues?

What Was the Lewis and Clark Expedition?
Cover 4

What Was the Bombing of Hiroshima?

What Was D-Day?
What Was the Age of the Dinosaurs?
What Are the Summer Olympics?
What Was the Age of Exploration?
What Was the San Francisco Earthquake?
What Is Congress?
What Was the Great Chicago Fire?
What Is Climate Change?
What was the Holocaust?
What Was the March on Washington?
Cover 2

What Was the Vietnam War?

What Are the Winter Olympics?
What Was the Children's Blizzard of 1888?
What Is the Women's World Cup?
What Was the Donner Party?
What Was Reconstruction?
What Is a Presidential Election?: 2024 Edition
What was the Battle of Gettysburg?
What Is Rock and Roll?
What Was the Gold Rush?