Definitions

Johannes Hevelius (1611-1687) was a Polish astronomer based in Danzig (Gdańsk). He worked from his own privately funded observatory, creating maps of the Moon's surface, discovering the first variable star, and spotting several new comets...

Titus Quinctius Flamininus (229-174 BCE) was a consul and military commander of the Roman Republic during the Second Macedonian War, who decisively defeated Philip V of Macedon (r. 221-179 BCE) at the Battle of Cynoscephalae in 197 BCE and...

Robert Boyle (1627-1691) was an Anglo-Irish chemist, physicist, and experimental philosopher. Boyle was a prolific author, made significant experiments with air pumps, and presented the first litmus test. A founding member of the Royal Society...

Christiaan Huygens (1629-1695) was a Dutch mathematician, physicist, and astronomer. A leading figure of the Scientific Revolution, Huygens combined research into mathematical-based theories, such as the movement of light waves, with practical...

The Hundred Days refers to the second reign of French Emperor Napoleon I, who unexpectedly returned from exile to reclaim the French throne. It encompasses Napoleon's triumphant return to Paris on 20 March 1815, his climactic defeat at the...

Peter I of Russia (Peter the Great) was the Tsar of Russia from 1682-1721 and Emperor of Russia from 1721-1725. During his long reign, Peter had absolute power and brought real change to Russia, including building its first navy, introducing...

Edmond Halley (1656-1742) was an English astronomer, mathematician, and cartographer. Halley's Comet is named after him since he accurately predicted its return in 1758. One of the early globetrotting scientists, Halley led several maritime...

Francis Bacon (1561-1626) was an English philosopher, statesman, and author. Bacon is often considered one of the founders of modern scientific research and scientific method, even as "the father of modern science" since he proposed a new...

Joachim Murat (1767-1815) was a French cavalry officer who fought in the French Revolutionary Wars (1792-1802) and Napoleonic Wars (1803-1815). He was appointed marshal of the French Empire in 1804, Grand Duke of Berg in 1806, and ruled as...

Prince Józef Poniatowski (1763-1813) was a Polish soldier and patriot, who served as commander-in-chief of the Polish army during the Napoleonic Wars (1803-1815). A steadfast ally of French Emperor Napoleon I (r. 1804-1814; 1815), Poniatowski...