The Alaska Purchase was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a treaty ratified by the United States Senate. Russia had establi...

The Wright brothers, Orville (1871–1948) and Wilbur (1867–1912), were two American brothers, inventors, and aviation pioneers who are credited with inventing and building the world's first successful airplane and making the first controlled...

Kristian Olaf Bernhard Birkeland was a Norwegian scientist. He is best remembered as the person who first elucidated the nature of the Aurora borealis. In order to fund his research on the aurorae, he invented the electromagnetic cannon and...

Marie Sklodowska Curie was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, the first person and only woman to win twice, the only person...

(John) Gutzon de la Mothe Borglum was an American artist and sculptor famous for creating the monumental presidents' heads at Mount Rushmore, South Dakota, the famous carving on Stone Mountain near Atlanta, as well as other public works of...

Charles Louis Eugène Koechlin was a French composer, teacher and writer on music. He was a political radical all his life and a passionate enthusiast for such diverse things as medieval music, The Jungle Book of Rudyard Kipling, Johann Seba...

Frank Lloyd Wright was an American architect, interior designer, writer and educator, who designed more than 1,000 structures, 532 of which were completed. Wright believed in designing structures that were in harmony with humanity and its e...

Captain Robert Falcon Scott was a British Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery Expedition (1901–1904) and the ill-fated Terra Nova Expedition (1910–1913). On the first expedition, h...

Nicholas II or Nikolai II was the last Emperor of Russia, ruling from 1 November 1894 until his forced abdication on 15 March 1917. His reign saw the fall of the Russian Empire from being one of the foremost great powers of the world to eco...

Gertrude Margaret Lowthian Bell was a British writer, traveler, political analyst, and administrator in Arabia. She was awarded the Order of the British Empire. Bell and T. E. Lawrence (Lawrence of Arabia) are recognized as almost wholly re...

Charles Rennie Mackintosh was a Scottish architect, designer, water colourist and artist. He was a designer in the post impressionist movement and also the main representative of Art Nouveau in the United Kingdom. He had considerable influe...

Emanuel Lasker was a German chess player, mathematician, and philosopher who was World Chess Champion for 27 years (from 1894 to 1921). In his prime Lasker was one of the most dominant champions, and he is still generally regarded as one of...

Paul Marie Ghislain Otlet was a Belgian author, entrepreneur, visionary, lawyer and peace activist; he is one of several people who have been considered the father of information science, a field he called "documentation". Otlet created the...

Edward Sheriff Curtis was a photographer of the American West and of Native American peoples. In 1906 J.P. Morgan offered Curtis $75,000 to produce a series on the North American Indian. It was to be in 20 volumes with 1,500 photographs....

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...