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What Was the Berlin Wall?
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What Was the Berlin Wall?
by Nico Medina, Who HQ, Stephen Marchesi (Illustrator)
What Is the Supreme Court?
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What Is the Supreme Court?
by Jill Abramson, Who HQ, Gregory Copeland (Illustrator)
What Is the Constitution?
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What Is the Constitution?
by Patricia Brennan Demuth, Who HQ, Tim Foley (Illustrator)
What Was the Tulsa Race Massacre of 1921?
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What Was the Tulsa Race Massacre of 1921?
by Caleb Gayle, Who HQ, Tim Foley (Illustrator)
What Are the Ten Commandments?
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What Are the Ten Commandments?
by Yona Zeldis McDonough, Who HQ, Tim Foley (Illustrator)
What Are the Summer Olympics?
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What Are the Summer Olympics?
by Gail Herman, Who HQ, Stephen Marchesi (Illustrator)
What Was the Great Molasses Flood of 1919?
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What Was the Great Molasses Flood of 1919?
by Kirsten Anderson, Who HQ, Dede Putra (Illustrator)
What Was the Underground Railroad?
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What Was the Underground Railroad?
by Yona Zeldis McDonough, Who HQ, Lauren Mortimer (Illustrator)
What Is LEGO?
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What Is LEGO?
by Jim O'Connor, Who HQ, Ted Hammond (Illustrator)
What Is the Stanley Cup?
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What Is the Stanley Cup?
by Gail Herman, Who HQ, Gregory Copeland (Illustrator)
What Is Congress?
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What Is Congress?
by Jill Abramson, Who HQ, David Malan (Illustrator)
What Was the March on Washington?
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What Was the March on Washington?
by Kathleen Krull, Who HQ, Tim Tomkinson (Illustrator)
What Was the Great Depression?
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What Was the Great Depression?
by Janet B. Pascal, Who HQ, Dede Putra (Illustrator)
What Is the World Cup?
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What Is the World Cup?
by Bonnie Bader, Who HQ, Stephen Marchesi (Illustrator)
What Is Climate Change?
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What Is Climate Change?
by Gail Herman, Who HQ, John Hinderliter (Illustrator)

All Books in This Series

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Title: What Was the Great Chicago Fire?, Author: Janet B. Pascal
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What Was the Great Chicago…
by Janet B. Pascal, Who HQ, Tim Foley (Illustrator)
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Title: What Was the San Francisco Earthquake?, Author: Dorothy Hoobler
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What Was the San Francisco…
by Dorothy Hoobler, Thomas Hoobler, Who HQ, Ted Hammond (Illustrator)
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Title: What Is the Declaration of Independence?, Author: Michael C. Harris
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What Is the Declaration of…
by Michael C. Harris, Who HQ, Jerry Hoare (Illustrator)
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eBook $5.99
Title: What Were the Twin Towers?, Author: Jim O'Connor
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What Were the Twin Towers?
by Jim O'Connor, Who HQ, Ted Hammond (Illustrator)
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Title: What Are the Summer Olympics?, Author: Gail Herman
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What Are the Summer Olympics?
by Gail Herman, Who HQ, Stephen Marchesi (Illustrator)
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eBook $7.99
Title: What Was Woodstock?, Author: Joan Holub
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What Was Woodstock?
by Joan Holub, Who HQ, Gregory Copeland (Illustrator)
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eBook $7.99
Title: What Was the Great Depression?, Author: Janet B. Pascal
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What Was the Great Depression?
by Janet B. Pascal, Who HQ, Dede Putra (Illustrator)
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eBook $5.99
Title: What Is the Super Bowl?, Author: Dina Anastasio
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What Is the Super Bowl?
by Dina Anastasio, Who HQ, David Groff (Illustrator)
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eBook $7.99
Title: What Were the Salem Witch Trials?, Author: Joan Holub
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What Were the Salem Witch…
by Joan Holub, Who HQ, Dede Putra (Illustrator)
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eBook $7.99
Title: What Was Hurricane Katrina?, Author: Robin Koontz
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What Was Hurricane Katrina?
by Robin Koontz, Who HQ, John Hinderliter (Illustrator)
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eBook $6.99
Title: What Is the World Series?, Author: Gail Herman
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What Is the World Series?
by Gail Herman, Who HQ, David Grayson Kenyon (Illustrator)
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Title: What Was D-Day?, Author: Patricia Brennan Demuth
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What Was D-Day?
by Patricia Brennan Demuth, Who HQ, David Grayson Kenyon (Illustrator)
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Title: What Was the Hindenburg?, Author: Janet B. Pascal
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What Was the Hindenburg?
by Janet B. Pascal, Who HQ, David Groff (Illustrator)
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Title: What Was the Lewis and Clark Expedition?, Author: Judith St. George
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What Was the Lewis and Clark…
by Judith St. George, Tim Foley
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Title: What Is the Panama Canal?, Author: Janet B. Pascal
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What Is the Panama Canal?
by Janet B. Pascal, Who HQ, Tim Foley (Illustrator)
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Title: What Is the Statue of Liberty?, Author: Joan Holub
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What Is the Statue of Liberty?
by Joan Holub, Who HQ, John Hinderliter (Illustrator)
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Title: What Was Ellis Island?, Author: Patricia Brennan Demuth
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What Was Ellis Island?
by Patricia Brennan Demuth, Who HQ, David Groff (Illustrator)
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Title: What Was Pompeii?, Author: Jim O'Connor
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What Was Pompeii?
by Jim O'Connor, Who HQ, John Hinderliter (Illustrator)
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Title: What Was the Underground Railroad?, Author: Yona Zeldis McDonough
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What Was the Underground…
by Yona Zeldis McDonough, Who HQ, Lauren Mortimer (Illustrator)
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Title: What Was the Alamo?, Author: Pam Pollack
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What Was the Alamo?
by Pam Pollack, Meg Belviso, Who HQ, David Groff (Illustrator)
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