Otto Hahn is born Frankfurt-on-the-Main, Germany as the youngest of four children to his parents Heinrich Hahn and Charlotte Hahn, née Giese .

Otto Hahn studies chemistry and mineralogy at the University of Marburg.

Otto Hahn goes to McGill University to work with Ernest Rutherford

Otto Hahn is appointed Honorary President of the Max Planck Society

Otto Hahn is appointment Visiting Professor at Cornell University, Ithaca, New York

Otto Hahn is elected to full membership of the Prussian Academy of Sciences in Berlin.

Otto Hahn is appointed director of the Kaiser Wilhelm Institute for Chemistry.

Otto Hahn concludes his habilitation at the University of Berlin

Otto Hahn is appointed professor Kaiser Wilhelm Institute for Chemistry

Otto Hahn serves in the army. He is assigned to the special unit for chemical warfare directed by Fritz Haber.

Otto Hahn is appointed head of the Radioactivity Department of the newly founded Kaiser Wilhelm Institute for Chemistry.

Otto Hahn is appointed President of the Max Planck Society.

Otto Hahn is appointed assistant to doctoral supervisor, Geheimrat Professor Theodor Zinckea at the University of Marburg

Otto Hahn returns to Germany and collaborates with Emil Fischer at the University of Berlin.

Otto Hahn marries Edith Junghans in Szczecin, Poland. They have a son, Hanno Hahn.

Otto Hahn receives his abitur from the Klinger Oberrealschule.

Otto Hahn is appointed President of the Kaiser Wilhelm Society.

Otto Hahn dies in Göttingen.

Otto Hahn is appointed at University College London to work under Sir William Ramsay.

Otto Hahn spends two semesters at the University of Munich studying under the direction of Adolf von Baeyer.

Otto Hahn receives his doctoral from the University of Marburg with a dissertation on organic chemistry supervised by Professor Theodor Zincke.

Otto Hahn is awarded the 1944 Nobel Prize in Chemistry. Hahn is unable to receive the award as he's detained at the Farm Hall under Operation Epsilon.