1859 – Born on February 19th in Vik, Sweden. Swedish physicist and physical chemist known for his theory of electrolytic dissociation and his model of the greenhouse effect.
1878-1884 – Arrhenius attended the famous Cathedral School in Uppsala and then entered Uppsala University, from which he received a bachelor’s degree and a doctorate.
1886 – He was given the honorary title of docent at Uppsala University and awarded a travel stipend by the Royal Swedish Academy of Sciences.
1887 – Arrhenius’s main contribution to physical chemistry was his theory that electrolytes, certain substances that dissolve in water to yield a solution that conducts electricity, are separated, or dissociated, into electrically charged particles, or ions, even when there is no current flowing through the solution.
1894 – Married to Sofia Rudbeck, who was one of the first Swedish women to earn a bachelor’s degree in science from Uppsala University.
1895 – He became professor of physics at Stockholm.
1896 – He published in The Philosophical Magazine.
1900 – He also participated in drawing up the statutes of the Nobel Foundation.
1901 – Arrhenius was a member of the Nobel Committee for Physics of the Royal Swedish Academy of Sciences.
1903 – He was awarded the Nobel Prize for Chemistry.
1905 – Arrhenius’s second marriage was to Maria Johansson.
1907 – Arrhenius’s work in immuno-chemistry, a term that gained currency through his book of that title published, was an attempt to study toxin-antitoxin reactions, principally diphtheria reactions, using the concepts and methods developed in physical chemistry.
1908 – His most successful venture into this genre was Worlds in the Making, originally published in Swedish and translated into several languages.
1927 – Died on October 2nd in Stockholm.