John Newlands was an English chemist who lived from the 26th November 1837 to the 29th July 1898.
He created the first periodic table, which was arranged in order of atomic masses. He published his 'Law of Octaves' in 1865 , which says that 'any given element will show similar traits to the eighth element after it.'. In his table, the elements were ordered by their atomic weights. Periods were shown going down the table, with groups going across – the opposite of the new periodic table.