Even as a child Albert Einstein was interested in science. He was also a great music lover and played the violin and piano. He taught himself geometry when he was 12. He found school life difficult because of the strict discipline and left when he failed an exam at the age of 16. He became a Swiss citizen in 1901 and married Mileva Maritsch that same year. He worked in a patent office in Bern from 1902 until 1909. It was during this period that he obtained his Doctorate degree and published four research papers, including one on the topic of the Special Theory of Relativity, which featured the well known equation "e=mc2."
In 1909 Einstein began working as Professor Extraordinary in Zurich. In 1914 he became a German citizen again and worked at the University of Berlin. He married his second wife, who was also his cousin, in 1919. In 1921 he was awarded the Nobel Prize in Physics. He moved to America in 1933 and took the position of Professor of Theoretical Physics at Princeton. After he retired he carried on enjoying physics until he died on April 18, 1955.Learn more about Modern History