1930 ) vol 1 pp 1 – 146 covers many major thinkers down to 1800

* 1800 – The Acts of Union 1800 is passed in which merges the Kingdom of Great Britain and the Kingdom of Ireland into the United Kingdom of Great Britain and Ireland.

Essays in European Economic History, 1500 – 1800, ( 1974 ), translated articles from Annales

* 1800 – George Bingham, 3rd Earl of Lucan, English soldier ( d. 1888 )

* 1761 – Yevstigney Fomin, Russian composer ( d. 1800 )

* 1800 – Hiram Walden, American politician ( d. 1880 )

* 1800 – Ludwig van Beethoven leads the premiere of his First Symphony in Vienna.

* 1800 – Gabriel Prosser postpones a planned slave rebellion in Richmond, Virginia, but is arrested before he can make it happen.

* 1800 – John Appold, British fur dyer and engineer ( d. 1865 )

* 1800 – The United States Library of Congress is established when President John Adams signs legislation to appropriate $ 5, 000 USD to purchase " such books as may be necessary for the use of Congress ".

* 1891 – Helmuth von Moltke the Elder, Prussian field marshal ( b. 1800 )

* 1718 – Hugh Blair, Scottish preacher, author, and rhetorician ( d. 1800 )

The Virginia Report of 1799 – 1800, Touching the Alien and Sedition Laws ; together with the Virginia Resolutions of December 21, 1798, the Debate and Proceedings thereon in the House of Delegates of Virginia, and several other documents illustrative of the report and resolutions

* Calvin Britain 1800 – 1862, American politician from Michigan

It can be produced by compressing other boron phases to 12 – 20 GPa and heating to 1500 – 1800 ° C ; it remains stable after releasing the temperature and pressure.

The T phase is produced at similar pressures, but higher temperatures of 1800 – 2200 ° C.

It has relatively high compressive strength, of about 170 MPa ( 1800 kgf / cm² ) but poor tensile strength of 104 – 121 MPa and very low shear stress strength ( 51. 6 MPa ), meaning it resists pushing forces well, but not pulling or torsional forces.

* Pope Pius VII ( 1742 – 1823, r. 1800 – 23 )

* Powell J., Blakeley D. W., Powell, T. Biographical Dictionary of Literary Influences: The Nineteenth Century, 1800 – 1914.

Chemistry came of age when Antoine Lavoisier ( 1743 – 1794 ) developed the theory of Conservation of mass in 1783 ; and the development of the Atomic Theory by John Dalton around 1800.

El bandolerismo en Cuba ( 1800 – 1933 ).

* Mote, Frederick W. Imperial China, 900 – 1800 Harvard University Press, 1999, 1, 136 pages, the authoritative treatment of the Song, Yuan, Ming, and Qing dynasties ;

In 1800, William Nicholson and Johann Wilhelm Ritter succeeded in decomposing water into hydrogen and oxygen by electrolysis.

The existence of infrared radiation was first discovered in 1800 by astronomer William Herschel.

Jacob's Ladder by William Blake ( c. 1800, British Museum, London ).

The Blasphemer ( ink and watercolor, circa 1800, by William Blake )

The Pindarick of Cowley was revived around 1800 by William Wordsworth for one of his very finest poems, the Intimations of Immortality ode ; irregular odes were also written by Samuel Taylor Coleridge, John Keats, and Percy Bysshe Shelley who wrote odes with regular stanza patterns.

The Olney Hymns () were first published in February 1779, and are the combined work of curate John Newton ( 1725 – 1807 ) and his poet friend, William Cowper ( 1731 – 1800 ).

* 1746 – William Billings, American composer ( d. 1800 )

The Capitol when first occupied by Congress ( painting circa 1800 by William Russell Birch )

* May 9 – William S. Harney, U. S. Army general ( b. 1800 )

* August 8 – William Lovett, British Chartist leader ( b. 1800 )

* September 17 – William Fox Talbot, English photographer ( b. 1800 )

* October 31 – William Parsons, 3rd Earl of Rosse, Irish astronomer ( b. 1800 )

* October 7 – William Billings, American composer ( d. 1800 )

* November 15 – William Cowper, English poet ( d. 1800 )

* July 30 – William Jones ( 1726 – 1800 ), ( d. 1800 )

* 1800 – William Nicholson and Johann Ritter decomposed water into hydrogen and oxygen.

Captain William Bainbridge paying the U. S. tribute to the Dey of Algiers, circa 1800.

Infrared astronomy began in the 1830s, a few decades after the discovery of infrared light by William Herschel in 1800.

* 1800 William Nicholson and Anthony Carlisle use electrolysis to separate water into hydrogen and oxygen

* 1800 — William Herschel discovers infrared radiation from the Sun

* 1800 — William Nicholson and Johann Ritter use electricity to decompose water into hydrogen and oxygen, thereby discovering the process of electrolysis, which led to the discovery of many other elements.

Their children were born on his family's plantation near Timber Ridge Church, including Sam Houston on March 2, 1793, the fifth of nine children and the fifth son born: Children-Paxton 1783, Robert 1787, James 1788, John Paxton 1790 ( first clerk of Izard County, Arkansas 1819-1838 ), Samuel 1793, William 1794, Isabella 1796, Mary Blair 1797, and Elizabeth Ann 1800.

His partner William Burnett had owned the house since 1800.