Joseph Nicéphore Niépce was a French inventor, now usually credited as the inventor of photography and a pioneer in that field. Niépce developed heliography, a technique he used to create the world's oldest surviving product of a photograph...

William IV was King of the United Kingdom of Great Britain and Ireland and of Hanover from 26 June 1830 until his death. William, the third son of George III and younger brother and successor to George IV, was the last king and penultimate...

Louis Delgrès was a leader of the movement in Guadeloupe resisting reoccupation (and thus the reinstitution of slavery) by Napoleonic France in 1802. Delgrès was mulatto, born free in Saint-Pierre, Martinique. A military officer for Rev...

The Reverend Thomas Robert Malthus was a British scholar, influential in political economy and demography. Malthus popularized the economic theory of rent. Malthus has become widely known for his theories about population and its increase o...

Thomas Bruce, 7th Earl of Elgin and 11th Earl of Kincardine was a British nobleman and diplomat, known for the removal of marble sculptures (also known as the Elgin Marbles) from the Parthenon in Athens. Elgin was the second son of Charles...

John Dalton was an English chemist, meteorologist and physicist. He is best known for his pioneering work in the development of modern atomic theory, and his research into colour blindness. He developed the first useful atomic theory of...

Count Josef von Radetz was a Czech nobleman and field marshal, a member of House of Radetzky in the Kingdom of Bohemia. He served as chief of the general staff in the Austrian Habsburg Monarchy during the later period of the Napoleonic Wars...

Saint-Just was a military and political leader during the French Revolution. The youngest of the deputies elected to the National Convention in 1792, Saint-Just rose quickly in their ranks and became a major leader of the government of the...

Marie-Anne Charlotte de Corday d'Armont, known to history as Charlotte Corday, was a figure of the French Revolution. In 1793, she was executed under the guillotine for the assassination of Jacobin leader Jean-Paul Marat, who was in part re...

Francis II (German: Franz II) was the last Holy Roman Emperor, ruling from 1792 until 6 August 1806, when he dissolved the Empire after the disastrous defeat of the Third Coalition by Napoleon at the Battle of Austerlitz. In 1804, he had fo...

Joseph Napoleon Bonaparte, King of Naples and Sicily, King of Spain and the Indies, Count of Survilliers was the older brother of French Emperor Napoleon I, who made him King of Naples and Sicily (1806–1808) and later King of Spain. He was...

Napoleon Bonaparte was a French military and political leader who rose to prominence during the latter stages of the French Revolution and its associated wars in Europe. As Napoleon I, he was Emperor of the French from 1804 to 1814 and a...

Georges Cuvier was a renowned French naturalist and zoologist considered the founder of comparative anatomy and vertebrate paleontology. He originated a system of zoological classification that comprised four phyla based on differences in s...

Muhammad Ali Pasha, also known as Muhammad Ali of Egypt and the Sudan, was the Albanian Ottoman governor and the de facto ruler of Egypt from 1805 to 1848, who is considered the founder of modern Egypt. At the height of his rule, he control...

Manuel José Joaquín del Corazón de Jesús Belgrano, usually referred to as Manuel Belgrano, was an Argentine economist, lawyer, politician, and military leader. He took part in the Argentine Wars of Independence and created the Flag of Argen...