Harriet Tubman

Was the first woman to lead an armed exhibition in the American Civil War when she guided the raid on the 'Combahee' river and liberated more than 700 slaves.

http://www.harriettubman.com/

Helen Keller

"Helen Adams Keller
(June 27, 1880 – June 1, 1968)

was an American author, political activist, and lecturer. She was the first deafblind person to earn a Bachelor of Arts degree. The story of how Keller's teacher, Anne Sullivan, broke through the isolation imposed by a near complete lack of language, allowing the girl to blossom as she learned to communicate, has become widely known through the dramatic depictions of the play and film The Miracle Worker.

A prolific author, Keller was well-traveled, and was outspoken in her opposition to war. A member of the Socialist Party of America and the Wobblies, she campaigned for women's suffrage, workers' rights, and socialism, as well as many other leftist causes." 

See more on her wiki page - http://en.wikipedia.org/wiki/Helen_Keller



Julius Caesar

"(July 100 BC – 15 March 44 BC)

was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....
Based on remarks by Plutarch, Caesar is sometimes thought to have suffered from epilepsy... Despite the commonly held belief that Caesar suffered from epilepsy, several specialists in headache medicine believe that a more accurate diagnosis would be migraine headache..."

Wiki page - http://en.wikipedia.org/wiki/Julius_Caesar