Harriet Beecher Stowe was an American abolitionist and author. Her novel Uncle Tom's Cabin (1852) was a depiction of life for African-Americans under slavery; it reached millions as a novel and play, and became influential in the United Sta...

David Livingstone was a Scottish Congregationalist pioneer medical missionary and an explorer in Africa. His meeting with H. M. Stanley gave rise to the popular quotation, "Dr. Livingstone, I presume?" Perhaps one of the most popular nat...

Frederick Douglass was an American social reformer, orator, writer and statesman. After escaping from slavery, he became a leader of the abolitionist movement, gaining note for his dazzling oratory and incisive antislavery writing. He stood...

Frederick Law Olmsted was an American landscape architect, journalist, social critic, and public administrator. He is popularly considered to be the father of American landscape architecture. Olmsted was famous for co-designing many well-kn...

Samuel Langhorne Clemens, known by his pen name Mark Twain, was an American writer, humorist, entrepreneur, publisher, and lecturer. He was lauded as the "greatest humorist this country has produced", and William Faulkner called him "the fa...

John Muir was a Scottish-American naturalist, author, and early advocate of preservation of wilderness in the United States. His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of Ca...

Baroness Bertha von Suttner, Gräfin (Countess) Kinsky von Wchinitz und Tettau was an Austrian novelist, radical (organizational) pacifist, and the first woman to be a Nobel Peace Prize laureate. Suttner became a leading figure in the pea...

Muhammad Ahmad bin Abd Allah was a religious leader of the Samaniyya order in Sudan who, on June 29, 1881, proclaimed himself as the Mahdi or messianic redeemer of the Islamic faith. From his announcement of the Mahdiyya in June 1881 until...

Cut Nyak Dhien or Tjoet Nja' Dhien was a leader of the Acehnese guerrilla forces during the Aceh War. Following the death of her husband Teuku Umar, she led guerrilla actions against the Dutch for 25 years. She was posthumously awarded the...

Booker Taliaferro Washington was an African-American educator, author, orator, and advisor to presidents of the United States. Between 1890 and 1915, Washington was the dominant leader in the African-American community. Washington was of...

Emmeline Pankhurst was a British political activist and leader of the British suffragette movement who helped women win the right to vote. In 1999 Time named Pankhurst as one of the 100 Most Important People of the 20th Century, stating "sh...

Theodor Herzl, also known in Hebrew as Khozeh HaMedinah, lit. "Visionary of the State", was an Austro-Hungarian journalist and writer. He is the father of modern political Zionism and in effect the foundation of the State of Israel....

José Rizal was a Filipino polymath, patriot and the most prominent advocate for reform in the Philippines during the Spanish colonial era. He is regarded as the foremost Filipino patriot and is listed as one of the national heroes of the Ph...

Sun Yat-sen was a Chinese politician, physician and philosopher who provisionally served as the first president of the Republic of China; and the first leader of the Kuomintang (Nationalist Party of China). He is referred as the "Father of...

W.E.B. Du Bois was an early African-American civil rights leader and scholar and the first non-white person to receive a doctorate from Harvard University. He was an outspoken critic of the social inequalities that existed in the US during...