Who Was Marco Polo?

Amundsen, the polar explorer

Lincoln's Grave Robbers (Scholastic Focus)

Across the Wide and Lonesome Prairie: The Diary of Hattie Campbell, The Oregon Trail, 1847 (Dear America)

Who Was Harriet Tubman?

In the Heart of the Sea (Young Readers Edition): The True Story of the Whaleship Essex

The discovery of America

What Was the Great Chicago Fire?

Little Author in the Big Woods: A Biography of Laura Ingalls Wilder

The Young Investigator's Guide to Ancient Aliens

The Borden Murders: Lizzie Borden and the Trial of the Century

Who Was Louis Braille?

A Young People's History of the United States

What Was the Underground Railroad?

Timelines of Everything: From woolly mammoths to world wars

Lincoln's Last Days: The Shocking Assassination that Changed America Forever

Who Was H. J. Heinz?

Staking a Claim: The Journal of Wong Ming-Chung, a Chinese Miner, California, 1852

What Was the Lewis and Clark Expedition?