Augusta Ada King, Countess of Lovelace, born Augusta Ada Byron and now commonly known as Ada Lovelace, was an English mathematician and writer chiefly known for her work on Charles Babbage's early mechanical general-purpose computer, the An...

Gustave Flauber, French novelist. Flaubert is regarded as one of the supreme masters of the realistic novel. He was a scrupulous, slow writer, intent on the exact word (le mot juste) and complete objectivity. The son of a surgeon, he studie...

John Kerr was a Scottish physicist and a pioneer in the field of electro-optics. He is best known for the discovery of what is now called the Kerr effect. Kerr's most important experimental work was the discovery of double refraction in...

Emily Elizabeth Dickinson was an American poet. Dickinson was born in Amherst, Massachusetts. Although part of a prominent family with strong ties to its community, Dickinson lived much of her life in reclusive isolation. After studying at...

Alexandre Gustave Eiffel was a French civil engineer. A graduate of École Centrale Paris, he made his name with various bridges for the French railway network, most famously the Garabit viaduct. He is best known for the world-famous Eiffel...

The Dowager Empress Cixi popularly known in China as the Western Empress Dowager, and officially known posthumously as Empress Xiaoqin Xian, was a powerful and charismatic figure who was the de facto ruler of the Manchu Qing Dynasty, rulin...

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...

Andrew Carnegie was a Scottish American industrialist who led the enormous expansion of the American steel industry in the late 19th century. He was also one of the highest profile philanthropists of his era and had given away almost 90 per...

Johannes Diderik van der Waals was a Dutch scientist and thermodynamicist famous for his work on the equation of state for gases and liquids which describe the relation between the pressure, volume, and temperature of fluids (gases and liq...

George Armstrong Custer was a United States Army officer and cavalry commander in the American Civil War and the Indian Wars. Raised in Michigan and Ohio, Custer was admitted to West Point in 1858, where he graduated last in his class. Howe...

Crazy Horse was a Native American war leader of the Oglala Lakota. He took up arms against the U.S. Federal government to fight against encroachments on the territories and way of life of the Lakota people, including leading a war party at...

Robert Heinrich Hermann Koch was a German physician and microbiologist. As the founder of modern bacteriology, he identified the specific causative agents of tuberculosis, cholera, and anthrax and gave experimental support for the concept o...

Karl Friedrich Benz was a German engine designer and automobile engineer, generally regarded as the inventor of the gasoline-powered automobile. Other German contemporaries, Gottlieb Daimler and Wilhelm Maybach, also worked independently on...

Sir Horace Lamb was an English applied mathematician and author of several influential texts on classical physics, among them Hydrodynamics (1895) and Dynamical Theory of Sound (1910). Both of these books remain in print. The word vorticity...

Antoine Henri Becquerel was a physicist, Nobel laureate, and the first person to discover evidence of radioactivity. For work in this field he, along with Marie Curie and Pierre Curie, received the 1903 Nobel Prize in Physics. The SI unit f...