David A Adler

A brief account of the life and accomplishments of Christopher Columbus.

An introduction to the genius with a curious mind who loved to experiment and who invented the phonograph, light bulb, movie camera, and numerous other items.

A collection of mathematical riddles involving people, animals, coins, or food.

Biography of the black woman who escaped from slavery to become famous as a conductor on the Underground Railroad.

A brief account of the life and accomplishments of Eleanor Roosevelt.

Explains why time zones exist and when daylight savings time is observed, including little-known facts and historical lore.

Traces the life of the Yankees' star ballplayer, focusing on his character and his struggle with the terminal disease amyotrophic lateral sclerosis.

Presents the life of the nineteenth-century Frenchman, accidentally blinded as a child, who originated the raised dot system of reading and writing used throughout the world by the blind. Contains an example of the Braille alphabet.

An introduction to the life of the Commander in Chief of the Confederate Army during the Civil War.