How the periodic table was made. By Shiren and Alex By Shiren Teji 1778 Antoine Lavoisier discovered Oxygen 1789 Antoine Lavoisier discovered Silicon and Carbon 1829 Johann Dobereiner discovered 56 elements of the Periodic Table 1864 John Newlands arranged the known elements of the Periodic Table by atomic mass 1869 Mendeleyev is best known for his discovery of the periodic law which was introduced