Biography Albert Einstein
1879	Albert Einstein, first child of Hermann and Pauline Einstein, is born in Ulm on March 14th.
1880	After moving to Munich, Hermann and his brother Jacob found an electrical engineering company.
1881	On November 10th, Albert's sister Maria (called Maja) is born.
1889	Albert attends the "Luitpold-Gymnasium" in Munich.
1894	The Einstein-family closes their company. His parents move to Milan. Without having taken his final exams, Einstein leaves school to live at his parents' place.
1895	After taking his final exams at Aarau school, Einstein looses his German citizenship.
1896 - 1900	He studies at the Swiss "Polytechnikum", the later "Technical University" (ETH) in Zurich.
1900	Having finished his degree, Einstein becomes a teacher for mathematics and physics.
1901	Einstein obtains the Swiss citizenship.
1902	In Novi Sad, Mileva Maric gives birth to his daughter Lieserl. Einstein works at the "Eidgenössisches Amt für geistiges Eigentum Bern" (Patent Office). The same year, his father Hermann dies in Milan.
1903	Albert Einstein marries Mileva Maric in Bern.
1904	Mileva gives birth to his first son, Hans Albert.
1905	Annus mirabilis: While working on the Brownian motion, the photoelectrical effect and the electrodynamics of bodies in motion, he develops the theory of relativity. The appendix contains the formula: E = mc². Einstein becomes one of the most famous physicists in the world.
1906	Doctorate at the University of Zurich.
1908	Professorial dissertation. Lecturer (Privatdozent) in physics in Bern.
1909	Einstein is appointed associate professor for theoretical physics at the University of Zurich. He receives an honorary doctorate at the University of Geneva.
1910	His son Eduard is born.
1911	As a full professor at the German University of Prague, he takes part in the first Solvay-Congress in Brussels.
1912	Professor of theoretical physics at ETH Zurich.
1913	Invitation to the "Preußische Akademie der Wissenschaften" (Prussian Academy of Science) in Berlin.
1914	The Einstein family moves to Berlin. A few weeks later Mileva and Albert Einstein split up. As a result, Mileva returns to Zurich with both sons. Due to the beginning of World-War I, Einstein engages in political and pacifist activities.
1915	His work on gravitation completes the general theory of relativity.
1916	Einstein becomes president of the "Deutsche Physikalische Gesellschaft" (German Physics Society) and a member of the committee of the "Physikalisch-Technische Reichsanstalt Berlin".
1917	He moves into his cousin Elsa's apartment in Berlin-Schöneberg, Haberlandstraße 5.
1919	Official divorce and second marriage with Elsa. An expedition on the solar eclipse, carried out by the Royal Society, gives proof to Einstein's theory of gravitation.
1920	Having suffered from a serious illness, his mother Pauline dies.
1921	First journey to the USA, i.a. collection of donations for the Hebrew University of Jerusalem.
1922	Nobel Prize for his work on theoretical physics, especially for his discovery of the photoelectrical effect.
1924	Completion of the "Einstein-Turm" (Einstein-tower) in Potsdam.
1925	Journey to South America, discovery of the Bose-Einstein condensate.
1928	Serious heart disease; Helene Dukas is employed as secretary.
1929	"Sommerhaus" (cottage) in Caputh; being awarded the Max Planck Medal by the German Physical Society.
1930	Speech on conscientious objection at the "Ritz-Carlton" hotel in New York.
1932	Departure as guest lecturer to the US in December.
1933	After the Nazis come to power, returning to Germany is impossible. Moving with his wife Elsa, his stepdaughter Margot and his secretary Helene Dukas to Princeton; employment at the Institute for Advanced Study in Princeton. Leaving the Prussian Academy of Science. Renunciation of German citizenship. Seizure of his legal estate in Germany.
1935	Einstein purchases a house in Mercer Street, Princeton, which he occupies until his death in 1955. Publication of the Einstein-Podolsky-Rosen paradox of quantum mechanics ("Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?").
1936	Elsa Einstein dies in Princeton.
1939	Einstein sends a letter to President Roosevelt with an indication of the possibility of Germany constructing nuclear bombs.
1940	Einstein becomes an American citizen.
1944	At an auction, a handwritten copy of his work on electrodynamics is sold for 6 million dollars to finance war bonds.
1946	President of the committee for the prevention of a nuclear war, commitment for a world government.
1952	Offer of becoming president of Israel is refused by Einstein.
1955	Albert Einstein dies on April 18th in Princeton.