01 Jan, 0001

Ctesibius of Alexandria

Circa 322 B.C. the Greek philosopher Aristotle writes: “If every tool, when ordered, or even of its own accord, could do the work that befits it… then there would be no need either of apprentices for the master workers or of slaves for the lords.” In his book Politics, Aristotle..Read More

30 Jun, 1275

Ramon Llull

Doctor Illuminatus Ramon Llull is an amazing figure in the field of philosophy during the Middle Ages, and one of the first people who tried to make logical deductions in a mechanical, rather than a mental way. His method was an early attempt to use logical means to produce knowledge...Read More

11 May, 1493

Leonardo da Vinci

In Leonardo’s manuscript Codex Madrid I, compiled by the genius in 1493, when he served at the Castle of Milan under the duke Ludovico il Moro, there is a sketch, picturing a mechanism, which is very likely to be designed for calculating purposes. Leonardo da Vinci is probably the most..Read More

01 Jul, 1614

Napier’s Logarithms

In July 1614 in Edinburgh, Scotland, was published a small book (57 pages of explanatory matter and 90 pages of tables) which will make a key advance in the use of mathematics. The book was Mirifici Logarithmorum Canonis Descriptio (Description of the Marvelous Canon of Logarithms), written by a Scotsman—John..Read More

04 Dec, 1615

Salomon de Caus

Jean Salomon de Caus was a French Huguenot engineer and scientist, who spent his life moving across Europe. He worked as a hydraulic engineer and architect under Louis XIII from 1623 till his death in Paris in 1626. de Caus also was in service of the Prince of Wales and..Read More

27 Mar, 1616

William Pratt

A simple calculating device with the fancy name Arithmetical Jewell was designed by William Pratt in the middle 1610s, and described in the book of the same name (The Arithmeticall Jewell: or the use of a small Table Whereby is speedily wrought, as well all Arithmetical workes in whole Numbers,..Read More

10 Oct, 1617

Napier’s Bones

In the end of 1617 in Edinburgh after the death of John Napier was published (in Latin language, which was a common practice then) his small book—Rabdologiae seu Numerationis per Virgulas libri duo. Looking to ease his own difficulties in calculating logarithmic tables, and impatient with the tedious and error-prone process..Read More

04 Apr, 1623

Wilhelm Schickard

One of the most important events in the life of the modest deacon of Nürtingen, Wilhelm Schickard, was his meeting in October, 1617, with the great astronomer Johann Kepler. Obviously during this meeting Kepler immediately recognized the massive intellect of the young Wilhelm, and encouraged his occasions with sciences, which..Read More

03 Apr, 1642

Blaise Pascal

The Roulette ou Roue Paschaline (celebrated as Pascaline in France and abroad) of the great french scientist Blaise Pascal was for more than three centuries considered as the first mechanical calculator in the world, as the Rechenuhr of Wilhelm Schickard was not widely known until late 1950s. Pascal most probably..Read More

04 Apr, 1651

Thomas Hobbes

The prominent English philosopher Thomas Hobbes is considered by some historians as one of the prophets of the AI (Artificial Intelligence), primarily for his proclamation By ratiocination, I mean computation, in his 1651 book Leviathan or The Matter, Forme and Power of a Common Wealth Ecclesiasticall and Civil, commonly called..Read More

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