It was on this date, March 28, 1942, that American philosopher, writer and cognitive scientist Daniel Clement "Dan" Dennett III was born in Boston, Massachusetts. Although a researcher on the philosophy of mind, the philosophy of science and the philosophy of biology, Dennett is chiefly known, along with Richard Dawkins, Sam Harris, and the late […]

It was on this date, February 26, 1786, that French mathematician, physicist, astronomer and politician François Arago was born François Jean Dominique Arago at Estagel, a small village near Perpignan, in the département of Pyrénées-Orientales. Brought up before and maturing during the French Revolution, he became one of the greatest French astronomers and physicists of […]

It was on this date, February 19, 1473, that Nicolaus Koppernigk, known to science history by his Latinized name, Nicolaus Copernicus, was born in Toruń, what is now known as Thorn in modern Poland. Copernicus lost his father at age 10 and was taken under the wing of his Uncle Lucas, a free-living Polish cleric, […]

Joseph Louis Gay-Lussac (1778) It was on this date, December 6, 1778, that French chemist Joseph Louis Gay-Lussac was born in Saint-Léonard-de-Noblat. He studied at the École Polytechnique, then at the École des Ponts et Chausses, and apprenticed under the famous chemist Claude Louis Berthollet. Gay-Lussac returned to the École Polytechnique to became professor of […]

The Biblical Flood (2347 BCE) It was on this date, November 18, 2347 BCE, that Noah's Ark came to rest on the mountains of Ararat, after 150 consecutive days of rain. We can be sure that this story is true, because the Judeo-Christian Bible tells us so, the Church Fathers say it was so, the […]

Charles Lyell (1797) It was on this date, November 14, 1797, that pioneering Scottish geologist Charles Lyell was born the oldest of 10 children of an active naturalist. He was educated at Oxford and turned from the law to geology, publishing his greatest work, The Principles of Geology, in three volumes from 1830-1833. His researches […]

Joseph McCabe (1867) It was on this date, November 11, 1867, that Freethought writer Joseph Martin McCabe was born in Manchester, the product of Protestant East Anglians and Irish Catholic stock. He was named Joseph, after the saint, because he was, from infancy, promised to the priesthood. He entered the priesthood at age 16 and […]

Carl Sagan (1934) It was on this date, November 9, 1934, that American astronomer and science author Carl Edward Sagan was born in New York City. Carl Sagan earned degrees in physics, astronomy and astrophysics. He taught at Cornell from 1968 and was a consultant on NASA's Mariner, Viking, Voyager and Galileo expeditions to other […]

Edmund Halley (1656) It was on this date, November 8,* 1656, that British astronomer Sir Edmond Halley was born in Hagerston, Middlesex, England (now London), the son of a wealthy merchant. He was educated at Oxford and before graduating took his first astronomical field trip in 1676, to the British-controlled island of St. Helena, where […]

Marie Curie (1867) It was on this date, November 7, 1867, that French chemist and nuclear physicist Marie Curie was born Maria Salomea Skłodowska in Warsaw, Poland. She was brought up a Catholic by her mother, but her father was a freethinker and provided her with some scientific training. She abandoned Catholicism before she was […]