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Sir Isaac Newton, (4 January 1643 – 31 March 1727) [ OS: 25 December 1642 – 20 March 1727][1]English physicist, mathematician, astronomer, alchemist, and natural philosopher, regarded by many as the greatest figure in the history of science.[2] His treatise Philosophiae Naturalis Principia Mathematica, published in 1687, described universal gravitation and the three laws of motion, laying the groundwork for classical mechanics. By deriving Kepler's laws of planetary motion from this system, he was the first to show that the motion of objects on Earth and of celestial bodies are governed by the same set of natural laws. The unifying and predictive power of his laws was integral to the scientific revolution, the advancement of heliocentrism, and the broader acceptance of the notion that rational investigation can reveal the inner workings of nature. was an In mechanics, Newton also markedly enunciated the principles of conservation of momentumangular momentum. In optics, he invented the reflecting telescope and discovered that the spectrum of colors observed when white light passes through a prism is inherent in the white light and not added by the prism (as Roger Bacon had claimed in the thirteenth century). Newton notably argued that light is composed of particles. He also formulated an empirical law of cooling, studied the speed of sound, and proposed a theory of the origin of stars. In mathematics, Newton shares the credit with Gottfried Leibniz for the development of calculus. He also demonstrated the generalized binomial theorem, developed the so-called "Newton's method" for approximating the zeroes of a function, and contributed to the study of power series.
Born in Southampton, Watts was brought up in the home of a committed Nonconformist — his father had been incarcerated twice for his controversial views. At his local school he learned Latin, Greek and Hebrew and displayed a propensity for rhyme at home, driving his parents to the point of distraction on many occasions with his verse. Once, he had to explain how he came to have his eyes open during prayers.
Napoléon Bonaparte (born Napoleone di Buonaparte) (15 August 1769 – 5 May 1821) was a general during the French Revolution, the ruler of France as First ConsulPremier Consul) of the French Republic from 11 November1799 to 18 May 1804, Emperor of the French (Empereur des Français) under the name Napoléon I (Napoléon 1er) from 18 May 1804 to 6 April 1814, and was briefly restored as Emperor from 20 March to 22 June 1815. He was also King of Italy, Mediator of the Swiss Confederation and Protector of the Confederation of the Rhine. (
Over the course of little more than a decade, the armies of France under his command fought almost every European power and acquired control of most of continental Europe by conquest or alliance. The disastrous invasion of Russia in 1812 marked a turning point. Following the Russian campaign and the defeat at Leipzig in October 1813, the Allies invaded France, forcing Napoleon to abdicate in April 1814. He was exiled to the island of Elba. He staged a comeback known as the Hundred Days (les Cent Jours), but was defeated at Waterloo on 18 June 1815. He spent the remaining six years of his life on the island of St. HelenaAtlantic Ocean under British supervision. in the
Louis XVI (23 August 1754 – 21 January 1793) was King of France and Navarre from 1774 until 1791, and then King of the French from 1791 to 1792. Suspended and arrested during the Insurrection of the 10th of August 1792, he was tried by the National Convention, found guilty of treason, and executed on 21 January 1793. His execution signaled the end of the absolutist monarchy in France and would eventually bring about the rise of Napoleon I.
Although he was beloved at first, his indecisiveness and conservatism led the people to reject him and hate in him the perceived tyranny of the former kings of France. During the French Revolution, he was given the family name Capet (a reference to Hugh Capet, the founder of the dynasty), and was called Louis Capet in an attempt to discredit his status as king. He was also informally nicknamed Louis le Dernier (Louis the Last), a derisive use of the traditional nicknaming of French kings.

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