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Chemistry timeline

  • 50,000 BCE


    The home Erectus learned how to make fire, this allowed them to make food.
  • 3500 BCE


    In prehistory civilizations the discovered Bronze by mixing copper and tin.
  • 1800 BCE

    Ceramic and glass

    During 1800 B.C. the men invented the ceramic and glass.
  • 1700 BCE

    Classification of metals

    In 1700 B.C. the King Hammurabi started to classify the metals Like: gold, silver, iron, copper, as well as he gave them economic value of each of this metals.
  • 465 BCE


    In 456 B.C Democritus proposed a set of ideas that consisted that all matter was composed of atoms. This became the seed atomic theory.
  • 400 BCE

    Discovery of the elements

    Aristotles proposed the four event theory which consisted that matter was composed by the elects of fire, earth, water and air. This declaration opposed to the atomic theory. This theory was applied in alchemy.
  • 18

    First Chemical Processes

    First Chemical Processes
    In the 18th Century A.C. Jābir ibn Hayyān discovered the next processes distillation, crystallization, sublimation and evaporation. This processes helped in many ways since the allowed substances to change either its composition, purity etc. He is one of the Pilars of for the development of what we know as Chemistry and chemical engineer.
  • First mercury barometer

    First mercury barometer
    In 1643, Evangelista Torricelli created the first barometer, with this tool Evangelista was trying to prove how the air (atmosphere) contained pressures, since in that times scientist believed that air had no weight. Thanks to the Barometers people are able to assure atmosphere pressure. Barometers nowadays are still useful since they are use to predict weather, as altimeters in airplanes, fluid mechanism etc.
  • Vacuum pump

    Vacuum pump
    In 1546 Otto von Guericke developed a vacuum pump, he created it to demonstrate how the force of air pressure worked. Vacuum pump are usually used to get air from sealed space.
  • Boyle's Law

    Boyle's Law
    In 1662 Robert Boyle developed the fundamental gas laws, also known as Boyle'a laws. This law consisted in demonstrating how gas and volume varies depending on how it is exposed at a certain pressure and a constant temperature. An example of how this law is applied is the process of respiration or how tyres are inflated.
  • Phosphorus

    In 1669 Hennig Brand discovered the Phosphorus through urine.
  • Cobalt

    Cobalt was discovered in 1739 by Georg Brandt
  • Platinum

    Antonio de Ulloa in 1748 discovered platinium.
  • Nickel

    Discovered by Axel Frederic Cronstedt in 1751 by nickel.
  • Invariable air

    Invariable air
    Joseph Black in 1756 isolated carbon dioxide to make it Invariable air.
  • Inflammable air

    Inflammable air
    Henry Cavendish in 1766 isolated hydrogen and called it Inflammable air.
  • Electrical inverse-square law

    Electrical inverse-square law
    In 1767 Joseph Priestley presented the Electrical inverse-square law of Electrostatics.
  • Oxygen discovery

    Oxygen discovery
    In 1774 Joseph Priestley by experimenting with gases discovered oxygens, this discovery is very important do that we can't live without oxygen.
  • Chlorine

    Inn 1774 Carl Wilhelm Scheele discovered chlorine.
  • Law of definite proportions

    Law of definite proportions
    In 1794 Joseph Proust suggested the Law of definite proportions which said that chemical compounds have proportion with their mass. This Law is important in Chemistry due that it relates to chemical compounds.
  • Smallpox

    In 1796 Edward Jenner created the first successful vaccine against a disease. Through observation he noticed that milkmaids which were girls that worked on milking cows didn't catch smallpox instead the caught cowpox. Through this observation he came to the conclusion that some debilitating virus can protect people from diseases or other virus ( variola).
  • First Electric battery

    First Electric battery
    In 1799 Alessandro Volta created the electric battery. This battery opened a path to scientist for studying electricity in a better way.
  • Dalton's law

    Dalton's law
    In 1803 John Dalton proposed the Daltons law which relates the parcial pressure of components of a gas.
  • Atomic theory

    John Dalton created the atomic theory where it tries to pressure that all matter was formed from little indivisible particles named atoms.
  • Sodium and Potassium

    Sodium and Potassium
    In 1807 Humphry Davy decompose various melted salts and discovered sodium and potassium.
  • Avogadro’s law

    Avogadro’s law
    In 1811 Amedeo Avogadro proposed his law in which if gases are putted in a same condition of pressure and temperature under the same conditions of temperature and pressure gases have the same amount of molecules.
  • Table of atomic weight

    Table of atomic weight
    In 1828 Jacob Berzelius recopilase the table of atom weight of the elements.
  • Electromagnetic induction

    Electromagnetic induction
    Created by Michael Faraday in 1831 discovered electromagnetic induction, which consist in the moving of magnets through
    an eletrical conductor.
  • Caffeine

    Discovered in 1843 by Pierre Jean Robiquet, when he isolated the canine that drinks like mate and cola nuts have.
  • Chemical structure

    Created the chemical structure explaining how it works with carbon atoms.
  • First Periodic Table of the elements

    First Periodic Table of the elements
    In 1869 Dmitri Mendeleev created the first periodic Table of elements containing around 63. This helped to classify and arrange elements according to the element atomic weight. This was a big apportion since it helped to see the relations between elements according to its atomic weight.
  • First plastic

    First plastic
    In 1869 Jhon Weasley Hyatt creates celluloid plastic as a substitute of ivory.
  • Radio waves

    Radio waves
    In 1887 Heinrich Hertz discovered radio waves through the using of a copper wire receiver and a transmitter. Radio waves are important since the can be use for communication like talking in the phone, using the radio etc. Electronics mostly transmit radio waves.
  • Noble gases

    Noble gases
    In 1892 William Ramsay discovered the noble gases by stuffing and observing the density realized by unknown gases in the air.
  • X-rays

    In Wilhelm Roentgen accidentally discovered x-rays by using cathode rays which are rays that emit electrons through the negative electrode. When he was using this cathode rays he saw that the rays could be putted in a opaque black paper. This discovery has helped in looking through the body.
  • Radiation

    in 1896 Henri Becquere discovered this because he wanted to analyze x-ray with fluorescent minerals in photographic plates and then expose this to the sun but what he didn't expect as that the photographic plate with uranium transmitted some kind of radioactivity.
  • Discovery of Electron

    Discovery of Electron
    In 1897 Joseph John Thomson discovered the electron. He discovered them by using cathode rays and other methods. The discovery if electrons helped with the undesrtanding of of atomic structure and
  • Polythene

    In 1898 Hans von Pechmann investigated that Polythene was made of long molecular chains.
  • Atomic structure

    In 1913 Niels bohr publish its model of the atomic structure.
  • Tetraethyl lead

    Discovered by Thomas Midgley, and later on have its function in the treatment of gasoline.
  • Quantum chemistry

    Quantum chemistry
    Walter Heitler and Fritz London create quantum chemistry thanks to the chemical bond.
  • Penicillin

    In 1928 Alexander Fleming discovered penicillin by observing its Petri dishes that contained bacterias that provoke boils, after analysis one he noticed how it one had like mold but latter on it this he saw that this mold let out some "juice" or substance that made bacterias go like if it was inhabitable for them.
  • Cyclotron

    In 1930 Ernest Lawrence created the cyclotron which is a dispositive that varies the velocity of nuclear to high levels, without to many voltage. This is usually use in some areas of medicine.
  • Deuterium

    In 1931 Harold Urey discovered deuterium which is the name of a hydrogen isotope made of a proton and neutron.
  • Neutron discovery

    Neutron discovery
    In 1937 James Chadwick proved that inside the nucleus there was more than protons he did various experiment to finally discover a uncharge particle inside the nucleus, he named this particle neutron.
  • Discover of chromatography

    Discover of chromatography
    Archer Martin in 1944 discovered chromatography.
  • Proteins

    Frederick Sanger discovers the structure of proteins specially insuline.
  • Practic method for peptides and proteins

    Robert Bruce Merrifield created a piratic method to arrest of peptides and proteins.
  • Conductor Polymers

    Alan Jay Heeger develops conductor polymers and discovers that the plastic in certain circumstances can conduct electricity.