In 1795 Jean Baptiste Joseph Delambre was admitted to the Bureau des Longitudes, becoming President in 1800. In 1801 he was appointed secretary to the Académie des Sciences making him the most powerful figure in science in France. In 17...

Jenner was an English physician and pupil of John Hunter, a pioneer in comparative anatomy and morphology. Jenner's invaluable experiments, beginning in 1796 with the vaccination of eight-year-old James Phipps, proved that cowpox provided i...

Pierre-Simon, marquis de Laplace, was an influential French scholar whose work was important to the development of mathematics, statistics, physics, and astronomy. He summarized and extended the work of his predecessors in his five-volume M...

German poet, novelist, playwright, courtier, and natural philosopher, one of the greatest figures in Western literature. Throughout his life Goethe was interested in a variety of studies and pursuits. He made important discoveries in connec...

Tipu Sultan, also known as the Tiger of Mysore and Tippoo Sahib, was a ruler of the Kingdom of Mysore and a scholar, soldier and poet. Tipu was the eldest son of Sultan Hyder Ali of Mysore and his wife Fatima Fakhr-un-Nisa. Tipu introduced...

Antonio Salieri is still better known today for the renowned composers with whom he was associated than for his own many and varied compositions. While he cannot be ranked among the great masters himself, he has nevertheless come into view...

Caroline Lucretia Herschel was a German astronomer, whose most significant contributions to astronomy were the discoveries of several comets, including the periodic comet 35P/Herschel–Rigollet, which bears her name. She was the younger sist...

The Industrial Revolution was a period of the 18th century marked by social and technological change in which manufacturing began to rely on steam power, fueled primarily by coal, rather than on animal labor, or on water or wind power; and...

Enquiry Concerning the Principles of Morals. An Enquiry concerning the Principles of Morals, first published in 1751, was the third of David Hume's major philosophical treatises. Hume's aim in this elegant and lucid work was to present in a...

Madison, James, 4th President of the United States (1809–1817). A member of the Virginia planter class, he attended the College of New Jersey (now Princeton Univ.), graduating in 1771. Like George Washington and others, he opposed the colon...

Somewhere between tales and polemics, these funny, ribald, and inventive pieces show Voltaire doing what he does best: brilliantly challenging received wisdom, religious intolerance, and naïve optimism. Traveling through strange environment...

Sébastien Érard was a French instrument maker of German origin who specialised in the production of pianos and harps, developing the capacities of both instruments and pioneering the modern piano. Érard's grand piano action (English pate...

Joseph Marie Charles Jacquard was a French weaver and merchant. He played an important role in the development of the earliest programmable loom (the "Jacquard loom"), which in turn played an important role in the development of other progr...

Phillis Wheatley was the first published African-American female poet. Born in West Africa, she was sold into slavery at the age of seven or eight and transported to North America. She was purchased by the Wheatley family of Boston, who tau...

Don Miguel Hidalgo y Costilla or simply Miguel Hidalgo, was a Mexican Catholic priest and a leader of the Mexican War of Independence. As a priest, Hidalgo served in a church in Dolores, Mexico. After his arrival, he was shocked by the p...