In the subsequent paper entitled Experiments and Calculations Relative to Physical Optics, published in 1804, Young describes an experiment in which he placed a narrow card ( approx.

Eliza Roxcy Snow Young ( January 21, 1804 – December 5, 1887 ) was one of the most celebrated Latter-day Saint women of the nineteenth century.

Willard Richards ( June 24, 1804 – March 11, 1854 ) was an early leader in the Latter Day Saint movement and served as Second Counselor in the First Presidency to church president Brigham Young in The Church of Jesus Christ of Latter-day Saints ( LDS Church ) from 1847 until his death.

Roberta's older sister was Elizabeth Mary Young ( 1804 – 1859 ), who was the wife of Philip Richard Fendall II ( 1794 – 1867 ), the District Attorney of the District of Columbia.

Following the work of Thomas Young ( 1804 ) and Augustin-Jean Fresnel ( 1816 ), it was believed that light propagates as a transverse wave within an elastic medium called luminiferous aether.

The encoding of data by discrete bits was used in the punched cards invented by Basile Bouchon and Jean-Baptiste Falcon ( 1732 ), developed by Joseph Marie Jacquard ( 1804 ), and later adopted by Semen Korsakov, Charles Babbage, Hermann Hollerith, and early computer manufacturers like IBM.

The Congreve Rocket was a British military weapon designed and developed by Sir William Congreve in 1804.

Canal Street developed when the Rochdale Canal was constructed in 1804, a trade artery running through the city.

Rocketry was being developed in several countries and Congreve in 1804, at his own expense, began experimenting with rockets at Woolwich.

iii., 1876 ), Rambaud's researches were diverted towards other parts of the East: The Franco-Prussian War inspired him with the idea for some courses of lectures which developed into books: La domination française en Allemagne ; les Français sur le Rhin, 1792 – 1804 ( 1873 ) and L ' Allemagne sous Napoleon I.

In the Neustadt and outside the city walls ( reinforced between 1804 and 1808 ) new districts developed where he was easily able to accomplish his architectural goals.

He was educated at St Edmund Hall, Oxford ( BA, 1802 ; MA, 1804 ; DD, 1832 ); was ordained, and became curate of Richard Cecil at Cobham and Bisley in Surrey, where he developed into a strong Evangelical preacher ; was tutor or vice-principal of St Edmund Hall, Oxford, and minister of Worton, Oxfordshire, 1807 to 1812 ; assistant curate at St John's Chapel, Bedford Row, Bloomsbury, 1808 to 1812 ( where Richard Cecil had earlier been incumbent ); sole minister there, 1812 to 1824 ; and vicar of St Mary's Church, Islington, 1824 to 1832, when he was consecrated Bishop of Calcutta, and first Metropolitan of India and Ceylon.

Starting in 1871, Frege continued his studies in Göttingen, the leading university in mathematics in German-speaking territories, where he attended the lectures of Alfred Clebsch ( 1833 – 1872 ) ( analytical geometry ), Ernst Christian Julius Schering ( 1824 – 1897 ) function theory, Wilhelm Eduard Weber ( 1804 – 1891 ) ( physical studies, applied physics, Eduard Riecke ( 1845 – 1915 ) ( theory of electricity, and Hermann Lotze ( 1817 – 1881 ) ( philosophy of religion ).

Matthias Jakob Schleiden ( 5 April 1804 23 June 1881 ) was a German botanist and co-founder of the cell theory, along with Theodor Schwann and Rudolf Virchow.

The scientific theory of biogeography grows out of the work of Alexander von Humboldt ( 1769 – 1859 ), Hewett Cottrell Watson ( 1804 – 1881 ), Alphonse de Candolle ( 1806 – 1893 ), Alfred Russel Wallace ( 1823 – 1913 ), Philip Lutley Sclater ( 1829 – 1913 ) and other biologists and explorers.

Widely accepted as the most plausible theory put forth was that Emmet's remains were transferred to the Church of Ireland in St Peter's Church in Dublin under cover of the burial of Robert's sister, Mary Anne Holmes, in 1804.

Pierre François Verhulst ( 28 October 1804, Brussels, Belgium – 15 February 1849, Brussels, Belgium ) was a mathematician and a doctor in number theory from the University of Ghent in 1825.

His discovery of mitosis and chromosomes is considered one of the 100 most important scientific discoveries of all times, and one of the 10 most important discoveries in cell biology ( together with August Weismann's ( 1834 – 1914 ) discovery of meiosis, Theodor Schwann ( 1808 – 1890 ) and Matthias Schleiden's ( 1804 – 1881 ) cell theory and Alfred Sturtevant's ( 1866 – 1945 ) first genetic maps ).

Immanuel Kant ( 1724 – 1804 ) influenced American Personalism under three headings: the theory of knowledge, ethical theory, and the primacy of practical reason.

The term acquired a special significance in the philosophy of Immanuel Kant ( 1724 – 1804 ), who used it to describe the equally rational but contradictory results of applying to the universe of pure thought the categories or criteria of reason that are proper to the universe of sensible perception or experience ( phenomena ).

* Immanuel Kant ( 1724 – 1804 ), in the Critique of Pure Reason, distinguished between objects as phenomena, which are objects as shaped and grasped by human sensibility and understanding, and objects as things-in-themselves or noumena, which do not appear to us in space and time and about which we can make no legitimate judgments.

For instance, Immanuel Kant ( 1724 – 1804 ) declared in his Metaphysical Foundations of Natural Science ( 1786 ) that psychology cannot be made into a " proper " science because its phenomena cannot be rendered in mathematical form, among other reasons.

At his memorial service on 22 June 1825 his own Requiem in C minor — composed in 1804 – was performed for the first time.

The date on the title page of 1804 for Milton is probably when the plates were begun, but the poem was printed c. 1808.

" In this way, the common law was eventually incorporated into the legal systems of every state except Louisiana ( which inherited a civil law system from its French colonizers before the Louisiana Purchase of 1803, adopting a code similar to but not directly based on the Napoleonic Code of 1804 ).

Kaisertum might literally be translated as " emperordom " ( on analogy with " kingdom ") or " emperor-ship "; the term denotes specifically " the territory ruled by an emperor ", and is thus somewhat more general than Reich, which in 1804 carried connotations of universal rule.

Napoleon Bonaparte, who was already First Consul of the French Republic ( Premier Consul de la République française ) for life, declared himself Emperor of the French ( Empereur des Français ) on 18 May 1804, thus creating the Empire of the French ( Empire des Français ).

* The Science of Knowing: J. G. Fichte's 1804 Lectures on the Wissenschaftslehre.

The French National Convention, the first elected Assembly of the First Republic ( 1792 – 1804 ), on the 4th of February 1794, under the leadership of Maximilien Robespierre, abolished slavery by law in France and all its colonies.

The Kitzur Shulchan Aruch of Rabbi Shlomo Ganzfried ( Hungary 1804 – 1886 ), based on the very strict Hungarian customs of the 19th century, became immensely popular after its publication due to its simplicity.

In 1804, Astor purchased from Aaron Burr what remained of a 99-year lease on property in Manhattan.

They left on May 14, 1804, and met up with Lewis in St. Charles, Missouri, a short time later ; the corps followed the Missouri River westward.

1804 map of " Louisiana ( New France ) | Louisiana ", edged on the west by the Rocky Mountains.

Effective on October 1, 1804, the purchased territory was organized into the Territory of Orleans ( most of which became the state of Louisiana ) and the District of Louisiana, which was temporarily under the control of the governor and judges of the Indiana Territory.

The first steam locomotive was built by Richard Trevithick ; it first ran on 21 February 1804, although it was some years before steam locomotive design became economically practical.

This observation was first made by the French chemist Joseph Proust, based on several experiments conducted between 1798 and 1804.

* 1836 – James Fannin, American military figure on the Texas Army and leader during the Texas Revolution ( b. 1804 )

In 1804, he had moved from the University of Kiel to the University of Landshut, but, on being commanded by King Maximilian Joseph to draft a penal code for Bavaria ( Strafgesetzbuch für das Königreich Bayern ), in 1805 he moved to Munich where he was given a high appointment in the Ministry of Justice and was ennobled in 1808.

In 1804, while still a medical student, he was the first person to lecture on melanoma.

The first letter, dated 21 November 1804, discussed Gauss ' Disquisitiones and presented some of Germain's work on Fermat's Last Theorem.

The French eventually gave up on the experiment in 1804, as did the British when they later considered Fulton's submarine design.

One very early experiment in electrical telegraphy was an electrochemical telegraph created by the German physician, anatomist and inventor Samuel Thomas von Sömmering in 1809, based on an earlier, less robust design of 1804 by Spanish-Catalan polymath and scientist Francisco Salva Campillo.

Malthus married his cousin Harriet on 12 April 1804 and had three children: Henry, Emily and Lucy.

The Twelfth Amendment was proposed by the Congress on December 9, 1803, and was ratified by the required number of state legislatures on June 15, 1804.

Ratification was completed on June 15, 1804.

* Haiti gains independence from France on January 1, 1804, becoming the first black