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| 1277 | Bacon, Roger Arrest |  |
| The Condemnations of 1277 ban the teaching of certain philosophical doctrines, including deterministic astrology |
| Imprisoned for witchcraft for 10 yrs, placed under house arrest by Jerome of Ascoli, the Minister-General of the Franciscan Order |
| 1277 | Bacon, Roger Astrology | |
| The Condemnations of 1277 ban the teaching of certain philosophical doctrines, including deterministic astrology |
| 1214 | Bacon, Roger Birth | |
| Ilchester Birth of Roger Bacon, also known as Doctor Mirabilis (Latin: "wonderful teacher"), was one of the most famous Franciscan friars of his time |
| 1294 | Bacon, Roger Death | |
| 11th June Death of Roger Bacon |
| 1268 | Bacon, Roger Publication | |
| Publication of, "Opus majus" for Pope Clement IV |
| Publication of, "Opus tertium" for Pope Clement IV |
| Bacon is the ascribed author of the alchemical manual Speculum Alchemiae, translated into English as "The Mirror of Alchimy" in 1597 |
| 1666 | Newton, Isaac Invention Calculus | |
| Invents Calculus |
| 1631 | Oughtred, William Discovery of Algebra | |
| Proposes the symbol x for multiplication |
| 1610 | Pell, John Birth | |
| 1st Mar Southwick Birth of John Pell |
| 1685 | Pell, John Death | |
| 11th Dec Death of John Pell |
| 1654 | Pell, John Political Agent | |
| Appointed Oliver Cromwell's political agent to the Protestant cantons of Switzerland |
| 1634 | Pell, John Publication | |
| Publication of, "Astronomical History of Observations of Heavenly Motions" |
| Publication of, "Ecliptica prognostica" |
| Publication of, "Controversy with Longomontanus" |
| Publication of, "An Idea of the Mathematics, I2iflO" |
| Publication of, "Translation of Rizonius's Algebra" |
| Publication of, "A Table of Ten Thousand Square Numbers" |
