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Battle of Iwo Jima Facts, Significance, Photos, & Map

 Battle of Iwo Jima Date 19 February – 26 March 1945 (1 month and 1 week) Location  Iwo Jima, Volcano Islands, Japan Result  American victory USAAF fighter aircraft able to escort B-29's on missions to Japan. Americans gain an emergency landing base for damaged aircraft returning from missions on Japan. Belligerents  United States  Japan Commanders and leaders U.S. Navy: Chester W. Nimitz Raymond A. Spruance Marc A. Mitscher William H. P. Blandy U.S. Marine Corps: Holland M. Smith Harry Schmidt Graves B. Erskine Clifton B. Cates Keller E. Rockey Tadamichi Kuribayashi † Takeichi Nishi † Sadasue Senda † Rinosuke Ichimaru † Units involved American: Ground units: V Amphibious Corps 3rd Marine Division 4th Marine Division 5th Marine Division 147th Infantry Regiment (separate) Aerial units: Seventh Air Force Naval units: 5th Fleet Joint Expeditionary Force (TF 51) Amphibious Support Force (TF 52) Attack Force (TF 53) Expeditionary Troops (TF 56) Fast Carrier Force (T...

Albert Einstein Biography, Education, Discoveries, & Facts

 Albert Einstein Einstein in 1921, by Ferdinand Schmutzer Born 14 March 1879 Ulm, Kingdom of Württemberg, German Empire Died 18 April 1955 (aged 76) Princeton, New Jersey, U.S. Citizenship Kingdom of Württemberg, part of the German Empire (1879–1896) Stateless (1896–1901) Switzerland (1901–1955) Austria, part of the Austro-Hungarian Empire (1911–1912) Kingdom of Prussia, part of the German Empire (1914–1918) Free State of Prussia (Weimar Republic, 1918–1933) United States (1940–1955) Education Federal polytechnic school in Zurich (Federal teaching diploma, 1900) University of Zurich (PhD, 1905) Known for General relativity Special relativity Photoelectric effect E=mc2 (Mass–energy equivalence) E=hf (Planck–Einstein relation) Theory of Brownian motion Einstein field equations Bose–Einstein statistics Bose–Einstein condensate Gravitational wave Cosmological constant Unified field theory EPR paradox Ensemble interpretation Spouse(s) Mileva Marić (m. 1903; div. 1919)​ Elsa Löwenthal (m...

J.R.R. Tolkien Biography, Books, Movies, & Facts

 J.R.R. Tolkien Born John Ronald Reuel Tolkien 3 January 1892 Bloemfontein, Orange Free State Died 2 September 1973 (aged 81) Bournemouth, Hampshire, England Occupation Author, academic, philologist, poet Nationality British Alma mater Exeter College, Oxford Genre Fantasy, high fantasy, mythopoeia, translation, literary criticism Notable works The Hobbit The Lord of the Rings The Silmarillion Unfinished Tales Spouse Edith Bratt (m. 1916; d. 1971)​ Children John Francis (1917–2003) Michael Hilary (1920–1984) Christopher John (1924–2020) Priscilla Anne (b. 1929) J.R.R. Tolkien is an internationally renowned fantasy writer. He is best known for authoring 'The Hobbit' and 'The Lord of the Rings' trilogy. J.R.R. Tolkien was an English fantasy author and academic. Tolkien settled in England as a child, going on to study at Exeter College. While teaching at Oxford University, he published the popular fantasy novels The Hobbit and The Lord of the Rings trilogy. The works have h...

Karl Marx Biography, Theory, Beliefs, Children & Communism

 Karl Marx Born Karl Heinrich Marx 5 May 1818 Trier, Prussia, German Confederation Died 14 March 1883 (aged 64) London, England Burial place 17 March 1883, Tomb of Karl Marx, Highgate Cemetery, London, England Nationality Prussian (1818–1845) Stateless (after 1845) Political party Communist Correspondence Committee (until 1847) Communist League (1847–1852) International Workingmen's Association (1864–1872) Spouse(s) Jenny von Westphalen​ (m. 1843; died 1881)​ Children 7, including Jenny, Laura and Eleanor Parents Heinrich Marx (father) Henriette Pressburg (mother) Relatives Louise Juta (sister) Jean Longuet (grandson) Philosophy career Education University of Bonn University of Berlin University of Jena (PhD, 1841) Era 19th-century philosophy Region Western philosophy School Continental philosophy Marxism Thesis Differenz der demokritischen und epikureischen Naturphilosophie  (The Difference Between the Democritean and Epicurean Philosophy of Nature) (1841) Doctoral advisor Br...

Isaac Newton Biography, Facts, Discoveries, Laws, & Inventions

 Sir Isaac Newton  Born 4 January 1643 [O.S. 25 December 1642] Woolsthorpe-by-Colsterworth, Lincolnshire, England Died 31 March 1727 (aged 84) [O.S. 20 March 1726] Kensington, Middlesex, Great Britain Resting place Westminster Abbey Education Trinity College, Cambridge (M.A., 1668) Known for Newtonian mechanics Universal gravitation Calculus Newton's laws of motion Optics Binomial series Principia Newton's method Newton's Law of Cooling Newton's identities Newton's metal Newton line Newton-Gauss line Newtonian fluid Newton's rings Standing on the shoulders of giants List of all other works and concepts Awards FRS (1672) Knight Bachelor (1705) Scientific career Fields Physics, Natural philosophy, Alchemy, Theology, Mathematics, Astronomy, Economics Institutions University of Cambridge Royal Society Royal Mint Academic advisors Isaac Barrow Benjamin Pulleyn Notable students Roger Cotes William Whiston Influences Aristotle, Boyle, Descartes, Galileo Huygens,  Keple...

Qin Shi Huang Biography, Accomplishments, Family, United China, Tomb, & Facts

 Qin Shi Huang 19th-century posthumous depiction of Qin Shi Huang at the height of his reign Born Ying Zheng (嬴政) or Zhao Zheng (趙政) 259 BCE Died 210 BCE (aged 49) Burial Mausoleum, Mount Li, Lintong, Xi'an Issue Prince Fusu Prince Huhai Prince Gao Prince Jianglü Names 姓 Ancestral name: Ying (嬴) 氏 Clan name: Zhao (趙) 名 Given name: Zheng (政) Regnal name Shi Huangdi (始皇帝) Dynasty Qin Father King Zhuangxiang Mother Queen Dowager Zhao Emperor of the Qin dynasty Reign 221–210 BCE Successor Qin Er Shi King of Qin Reign 247–221 BCE Predecessor King Zhuangxiang Successor Himself as Emperor Early years Zhao Zheng was born the son of Zhuangxiang (who later became king of the state of Qin in northwestern China) while his father was held hostage in the state of Zhao. His mother was a former concubine of a rich merchant, Lü Buwei, who, guided by financial interests, managed to install Zhuangxiang on the throne, even though he had not originally been designated as successor. The tradition, once ...

William Wordsworth Biography, Facts, & Poems

 William Wordsworth Wordsworth on Helvellyn by Benjamin Haydon (National Portrait Gallery). Personal details Born 7 April 1770 Cockermouth, Cumberland, England Died 23 April 1850 (aged 80) Rydal, Westmorland, England Spouse(s) Mary Hutchinson (1802–1850; his death) Children Dora Wordsworth Relatives Dorothy Wordsworth (sister) Christopher Wordsworth (brother) Richard Wordsworth (great-great-grandson ) John Wordsworth (nephew) Alma mater St John's College, Cambridge Occupation Poet Poet Laureate of the United Kingdom In office 6 April 1843 – 23 April 1850 Monarch Victoria Preceded by Robert Southey Succeeded by Alfred, Lord Tennyson Poet William Wordsworth worked with Samuel Taylor Coleridge on Lyrical Ballads (1798). The collection, which contained Wordsworth's "Tintern Abbey," introduced Romanticism to English poetry. Wordsworth also showed his affinity for nature with the famous poem "I Wandered Lonely as a Cloud." He became England's poet laureate in ...

Peter I Biography, Accomplishments, Reforms & Facts

 Peter the Great Born 9 June 1672 Moscow, Tsardom of Russia Died 8 February 1725 (aged 52) Saint Petersburg, Russian Empire Burial Peter and Paul Cathedral Consort Eudoxia Lopukhina​ (m. 1689; div. 1698)​ Martha Skavronskaya ​(m. 1707)​ Issue Alexei Petrovich, Tsarevich of Russia Anna, Duchess of Holstein-Gottorp Elizabeth, Empress of Russia Grand Duchess Natalia Petrovna Names Peter Alekseyevich Romanov House Romanov Father Alexis of Russia Mother Natalya Naryshkina Religion Russian Orthodoxy Tsar / Emperor of Russia Reign 7 May 1682 – 8 February 1725 Coronation 25 June 1682 Predecessor Feodor III Successor Catherine I Co-monarch Ivan V (1682–1696) Regent Sophia Alekseyevna (1682–1689) Peter the Great was a Russian czar in the late 17th century who is best known for his extensive reforms in an attempt to establish Russia as a great nation. He created a strong navy, reorganized his army according to Western standards, secularized schools, administered greater control over the react...

William the conqueror Biography, Reign, Achievements, Facts, & Death

 William the Conqueror Born about 1028 Falaise, Duchy of Normandy, Kingdom of France Died 9 September 1087 (aged about 59) Priory of Saint Gervase, Rouen, Duchy of Normandy Burial Saint-Étienne de Caen, Normandy Spouse Matilda of Flanders (m. 1051/2; died 1083) Issue Robert II, Duke of Normandy Richard Adeliza Cecilia William II, King of England Constance, Duchess of Brittany Adela, Countess of Blois Henry I, King of England House Normandy Father Robert the Magnificent Mother Herleva of Falaise King of England Reign 25 December 1066 –9 September 1087 Coronation 25 December 1066 Predecessor Edgar the Ætheling (uncrowned) Harold II (crowned) Successor William II Duke of Normandy Reign 3 July 1035 – 9 September 1087 Predecessor Robert I Successor Robert II At the age of eight, William the Conqueror became duke of Normandy and later King of England. Violence plagued his early reign, but with the help of King Henry I of France, William managed to survive the early years. After the Battl...