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Time Line of Scientists, Bibliography, image, image, image, image, image,…

- - - - 1780
        
        1830
        
        1834
        
        1837
        
        1856
        
        1871
        
        3 more items...
        
        Thompson
        
        5 more items...
        
        Historical events that happened around this period:
        
        2 more items...
        
        John Newlands
        
        Died on 1898
        
        John Newlands attended Royal College of Chemestry university
        
        He was born in Lambeth, London, UK
        
        British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses. He found that every eight elements had similar properties and called this the law of octaves.
        
        https://www.youtube.com/watch?v=42AX2AoOiXA
        
        Historical events that happened around this period:
        
        The economic Panic of 1837 led to widespread unemployment, economic depression, devaluing of cotton and paper money, and bank and financial failures.
        
        The pronouncement of July 15, 1840 in Mexico City in favor of the federal regime was part of a series of movements that had occurred in the country since the establishment of centralism in 1835 and the proclamation of the Constitution of the Seven Laws
        
        Mendeleev
        
        Died on 1907
        
        Born in Tobolsk, Russia.
        
        He studied in University of Heidelberg.
        
        Dmitri Mendeleev devised the periodic classification of the chemical elements, in which the elements were arranged in order of increasing atomic weight. He invented the actual periodic table althought not all the elements were discover.
        
        Mendeleev: Atomic Theory Video
        
        Historical events that happened around this period:
        
        In Mexico:
        The Battle of La Concepción was a battle between the Republic of Mexico and the rebels of the state of Texas held on October 28, 1835, during the Independence of Texas under the Siege of Béjar.
        
        In the world:
        The British empire abolishes slavery, and more than 800,000 slaves in the British Caribbean are freed.
        
        Lothard Meyer
        
        Died on 1895
        
        He studied in "University of Wroclaw"
        
        Lothard Meyer was born in Varel, Germany
        
        Was the first person to do a Periodic Table. He published his first periodic table in 1862 and included 28 elements. In 1864, he published a textbook which included an updated periodic table that contained 50 elements.
        
        Historical events that happened around this period:
        
        In Mexico:
        Santa Anna himself becomes president after leading the successful resistance against Spain’s attempt to recapture Mexico in 1829.
        
        In the world:
        The Indian Removal Act was signed into law by President Andrew Jackson. The law led to the relocation of Indigenous peoples which became known as the "Trail of Tears."
        
        Dobëreiner
        
        Died on 1849.
        
        He studied in Jena University.
        
        Born in Hof, Germany.
        
        Dobereiner discovered that the relative atomic mass of the middle element in each triad was close to the average of the relative atomic masses of the other two elements. This gave other scientists a clue that relative atomic masses were important when arranging the elements.
        
        Historical events that happened around this period:
        
        In the world:
        American Revolution, insurrection by which 13 of Great Britain’s North American colonies won political independence and went on to form the United States of America
        
        In Mexico: At the beginning of the year 1780, a smallpox epidemic occurred in Taximaroa, which had the worst of all the demographic crises suffered by the population of the parish in the second half of the 18th century.
      - Historical events that happened around this period:
        
        In the world:
        Declaratory Act, (1766), declaration by the British Parliament that accompanied the repeal of the Stamp Act. It stated that the British Parliament's taxing authority was the same in America as in Great Britain
        
        In Mexico:
        Viceroy Carlos Francisco de Croix introduces public lighting to the city with oil lamps and creates the body of Sereno to control it.
      - Dalton
        
        Died on 1844
        
        He attended John Fletcher's Quaker grammar school in Eaglesfield.
        
        He was born in Eaglesfield, Cumberland, England.
        
        Dalton's experiments on gases led to his discovery that the total pressure of a mixture of gases amounted to the sum of the partial pressures that each individual gas exerted while occupying the same space.
        
        Dalton: Atomic theory VIdeo
    - - In the world:
        Sparta is defeated at the battle at Leuctra. Philip II of Macedon forces Athens to accept the Peace of Philocrates, a peace treaty marking the end of Greek independence.
      - In Mexico:
        The Mayan civilization, centered in the Yucatán peninsula, becomes one of the most dominant of the area’s regional groups, reaching its peak around the sixth century A.D.
    - - Died on 322 BCE on Eubea, Greece.
      - Born in Greece on the city of Stagira.
      - He studied in Atenas Academy.
      - In summary, Aristotle laid the philosophical groundwork for all subsequent discussions of elements, pure substances, and chemical combination. He asserted that all pure substances were homoeomerous and composed of the elements air, earth, fire, and water.
      - Aristotle Podcast