Jean Piaget, Developmental Psychologist

Swiss psychologist Jean Piaget was the first to realize that the cognitive processes of children differ from those of adults. Over his 75-year career...

Leo Szilard, Physicist and Contributor to the Manhattan Project

Leo Szilard, the Hungarian Jewish physicist, molecular biologist and inventor, worked on the Manhattan Project but expressed himself as a “scientist of conscience,” using...

Cecil B. DeMille, Hollywood Director

Cecil B. DeMille was one of the most successful directors in Hollywood. Not only did he produce and direct more than 70 films to...

Leo Tolstoy, Author of “War and Peace”

Leo Tolstoy proclaimed, “The sole meaning of life is to serve humanity.” His rebellion toward society, and his philosophical and idealistic outlook fashioned his...

Catherine Hughes, Radio and TV Executive

From a high school dropout and single teenaged mother to the first woman owner of a number one radio station and the first African-American...

Orville Wright, First Man to Fly an Airplane

Orville Wright was a leading aviation pioneer of the early 20th century. He and his older brother Wilbur are credited for being the first...

F. Scott Fitzgerald, Author of “The Great Gatsby”

F. Scott Fitzgerald was one of 20th century America’s greatest authors. His short stories and novels explored the wealth, hopes and moral indifference of...

Dr. Seuss, Children’s Book Writer

Theodor Geisel, more popularly known as Dr. Seuss, created quirky characters, lively rhymes and idiosyncratic illustrations. These qualities have ensured that his children’s books...

Meriwether Lewis, Western Explorer

Along with William Clark, Meriwether Lewis led the first expedition through the territory of the Louisiana Purchase, revealing the landscape and nature of the...

Helen Keller, Blind and Deaf Author and Activist

Helen Keller lost her vision and hearing before age 2. But with help from her tutor, Anne Sullivan, Keller learned how to speak, read...