1889 Born, Baden, September 26.
1906 Transfers to Bertholds gymnasium in Freiburg and
boards at the archiepiscopal seminary of St. Georg.
1907 Receives a copy of Franz Brentano's "On the
Manifold Meaning of Being according to Aristotle" (1862) .
1909 Receives baccalaureate, July 13. Entered novitate
of the Society of Jesus at Tisis near Feldkirch in Austria, September
30. Leaves at end of two week candidature, October 13; possibly turned
down for health reasons. Began studying for the priesthood at the Albert-Ludwig
University in Freiburg, winter semester. Borrows Husserl's Logical
Investigations from library. Begins reading Dilthey.
1910 Abandons theological seminary on advice of his superiors.
Changes studies to mathematics and philosophy.
1913 Doctoral examination under Schneider with Heinrich Rickert (1863-1936)
co-examining, July 26. Dissertation: Die Lehre vom Urteil im Psychologismus.
Ein kritischpositiver Beitrag zur Logik; "The Doctrine of Judgement
1914 Volunteers for Infantry Reserve Battalion 113. Serves August 2-10;
released for health reasons. Then drafted in same battalion. Serves
October 9-20; then again released for health reasons.
1915 Habilitation. Dissertation: "The Doctrine of
Categories and Signification in Duns Scotus". Philosophical Faculty
at Freiburg approves, and the Grand Duchy of Baden grants, July 31,
a license to teach philosophy; he's a Privatdozent. Drafted again August
18. September trained in Berlin with Reserve Battalion 142. Again released
for health reasons. Recuperates in hospital for a few weeks. October
16 sent back to Freiburg to work as a military censor at the post office.
Assists Father Engelbert Krebs (1881-1950) lecturing theology students
in philosophy. Course Die Grundlinien der antiken und scholastischen
Philosophie, and Über Kant, Prolegomena seminar, winter semester.
Attending the first course is Elfride Petri (1893-1992), a student of
political economy. Works with Edith Stein editing Husserl's papers for
1916 Meets Edmond Husserl (1859-1938) in the spring. Husserl
sends postcard to Heidegger asking to see his Habilitationsschrift,
May 27. Edith Stein becomes Husserl's personal assistant, October. It
is not known if Heidegger actually taught the courses announced in 1915-1916.
1917 Married to Elfride Petri by Father Krebs, March 21.
Talk on Friedrich Schleiermacher, August 2. Taught courses on Hegel
summer semester, and Plato winter semester.
1918 Drafted again January 1. Private Heidegger of the
territorial reserve reported to barracks, January 17. Discharged, November
16. Arrives home in December.
1919 Son Jörg born, January 1. Wrote to Engelbert
Krebs, breaking with "the dogmatic system of Catholicism",
January 9. Die Idee der Philosophie und das Weltanschauungsproblem
(GA56/57), Kriegsnotsemester (War Emergency Semester), February 7 to
April 11. April 8th meets Karl Jaspers (1883-1969) in Freiburg. Becomes
Edmond Husserl's unsalaried lecturer and assistant at Freiburg.
1922 Became associate at the University of Marburg. Meets Gadamer. Meets
1926 Heidegger presents Sein und Zeit (GA2) manuscript to Husserl
at his 67th birthday party in Todtnauberg, April 8. Heidegger lectures
in Switzerland. Grundbegriffe der antiken Philosophie (GA22),
summer semester. Vom Wesen der Wahrheit, lecture to Academic Union at
1927 Sein und Zeit published in Jahrbuch für Philosophie
und phänomenologische Forschung, vol. 8, April. Die Grundprobleme
der Phänomenologie (GA24).
1928 Appointed professor of philosophy at Freiburg. Einleitung
in die Philosophie (GA27).
1929 Speech to Edmund Husserl on his 70th birthday, Freiburg, April
8. Edith Stein visits Husserl and Heidegger, April. Vom Wesen des
Grundes, contribution to Edmund Husserl Festschrift, which he
edited. Kant und das Problem der Metaphysik (GA3) published.
Was ist Metaphysik?, inaugural lecture to the Freiburg University
faculties, July 24, in the University Auditorium. Der Deutsche Idealismus
(Fichte, Hegel, Schelling) und die philosophische Problemlage der Gegenwart
(GA28), summer semester. Die Grundbegriffe der Metaphysik Welt-Endlichkeit-Einsamkeit
(GA29/G30), winter semester. Count Kuki Shuzo introduces Heidegger's
work to Jean-Paul Sartre, his French tutor in Paris. Heidegger denounces
Jewish influence on Germany in grant application, October 2.
1930 Tea at Husserl's home, June 22. Gives talk, Vom Wesen
der Wahrheit, at Baden celebration, July 11-14. Vom Wesen der menschlichen
Freiheit. Einleitung in die Philosophie (GA31), summer semester.
1933 At fiftieth anniversary of Husserl doctorate at Husserl's home,
January 23. Ernst Krieck invites Heidegger to join the KADH (Kuturpolitische
Arbeitsgemeinschaft Deutscher Hochschullehrer), March. Heidegger describes
attending KADH meeting in Frankfurt in letter to Blochmann, March 30.
Elected April 21, becomes rector of the University of Freiburg, April
22. Writes to Krieck, April 22. Edmund Husserl forced to retire for
racial reasons, April. Writes to Husserl, April 29. Joins National Socialist
Party, May 3. Sends telegram to Hitler asking him to postpone meeting
with Association of German Universities, May 20. Writes to ministry
of education supporting anti-semitism, July 12.
1937 Nietzsches metaphysische Grundstellung im abendländischen
Denken: Die ewige Wiederkehr des Gleichen (GA44).
1938 Die Begründung des neuzeitlichen Weltbildes
durch die Metaphysik, "The Establishing by Metaphysics of the Modern
World Picture", lecture, June 9. Nietzsches II. Unzeitgemässe
Betrachtung (GA46), winter semester. Zeit des Weltbildes
written. Completes Beiträge zur Philosophie (Vom Ereignis)
1939 Nietzsches Lehre vom Willen zur Macht als Erkenntnis
(GA47), summer semester. Wie wenn am Feiertage written. Vom Wesen und
Begriff der "Physis", Aristoteles Physik B 1 written. Seminar
on Herder's On the Origin of Language, summer semester. Hölderlins
Hymne 'Wie wenn am Feiertage', lecture repeated several times.
1940 Nietzsche: Der europäische Nihilismus (GA48),
second trimester. Platons Lehre von der Wahrheit, lecture written.
1941 Schelling (GA49), first trimester. Grundbegriffe
(GA51), summer semester. Hölderlins Hymne <<Andenken>>
(GA52), winter semester.
1942 Hölderlins Hymne <<Der Ister>>
(GA53), summer semester. Parmenides (GA54), winter semester.
Vom Wesen der Wahrheiti.
1943 Heraklit (GA55). Vom Wesen der Wahrheit
published. Nietzsches Wort 'Gott ist tot', lecture. Postscript
added to new addition of Was ist Metaphysik?
1944 Logik. Heraklits Lehre vom Logos (GA55).
In December flees to Messkirch following bombing of Freiburg, November
27. Freiburg philosophical faculty moves to Schloss (Castle) Wildenstein
in upper Danube valley, 10 km. from Messkirch, December.
1945 Allies bomb Messkirch, February 22. French occupy
valley, April 21. Lectures on Hölderlin in Hausen, June 24. Returns
to Freiburg. Denazification hearings start July 23. Barred from teaching
by French Military Government as preliminary step in investigations,
October 5. Jaspers writes report on Heidegger's involvement with Nazis.
Freiburg Faculty of Philosophy first debates Heidegger's case, December
1; presents Heidegger with 23 questions. Jaspers writes to de-Nazification
committee criticizing Heidegger, December 22.
1946 Nervous breakdown. Taken by Beringer, dean of the
medical school, to Gebsattel, Badenweiler, for three weeks. Then returns
to Todnauberg. Meets Stefan Schimanski of the Manchester Guardian, June.
Informed of French Military Government's decision to bar him from teaching,
March 11. Heidegger applies for Emeritus status, declaring he will refrain
from teaching. Senate grants Heidegger Emeritus status, without permission
to teach, and orders him to keep a low profile. Regional government
and denazification comissions rule that the university refuse Heidegger
Emeritus status and pension him off. Ernesto Castelli visits Todtnauberg,
June 9. Spruch des Anaximander written. Wozu Dichter, lecture given
to commemorate 20th anniversary of Rilke's death (December 29, 1926).
Works on translating Lao-Tzu into German. University strips Heidegger
of professorship, December 28.
1947 Brief über den Humanismus published. Medard
Boss writes to Heidegger for first time. Herbert Marcuse writes to Heidegger
asking him to recant Nazi past, August 28. University stops paying Heidegger
at end of year.
1949 Die Gefahr and Das Gestell lecture in Bremen, January 12. Gadamer
edits Festschrift for Heidegger's sixtieth birthday. Wilhelm Szilasi,
publishes another Festschrift, Martin Heidegger's influence on the sciences,
Bern. French military government issues final report on Heidegger, July.
Prohibition against teaching lifted, Spetember. University senate votes
to make Heidegger emeritus professor. Introduction added to new addition
of Was ist Metaphysik?, and postscript revised.
1950 Einblick in Das, Was Ist (GA79) lectures
repeated in March at Bühlerhöhe. "Who is Zarathustra"
and "The principle of sufficient reason", lectures to Bremen
Club, March 25/26.
1951 Die Sprache, lecture at Stuttgart, February 14. Logos,
lecture to Bremen Club, May 4. Was heisst Denken?, part I (GA8),
1952 Was heisst Denken?, part II (GA8), summer
semester. Reads the final lecture after semester ends, at a "Colloquium
on Dialectic" in Muggenbrunn, September 15. Moira written.
Jean-Paul Sartre visits Freiburg, December.
1953 Meets Walter Kaufmann.
1955 Visited Paris and Normandy with Jean Beaufret in
August. Qu'est-ce que la Philosophie?, Was ist das-die Philosophie?,
presented in Cérisy-la-Salle, August. Also visits Paris and Georges
Braque in Varengeville.. Der Satz vom Grund, part I, winter
semester. Wrote Über "Die Linie" (later published
as Zur Seinsfrage) for Ernst Jünger Festschrift.
1957 Der Satz vom Grund (GA10), Hebel—der Hausfreund,
and Identität und Differenz published. Die Onto-Theo-logische Verfassung
der Metaphysik lecture in Todtnauberg, 24 February. Der Satz der Identität
lecture during celebration of the 500th year of the founding of the
University of Freiburg, June 27. Address at Heidelberg Academy. Das
Wesen der Sprache, lecture at University of Freiburg, December 14 and
1958 Das Wesen der Sprache, lecture at University
of Freiburg, February 7. Visited France, in March. Lecture on "Hegel
and the Greeks" in Aix-en-Provence, March 20. Dichten und Denken.
Zu Stefan Georges Gedicht 'Das Wort', lecture in the Burgtheater of
Vienna, May 11. Hegel und die Griechen lecture at the Heidelberg Academy
of Sciences, July 26. Das Wort, lectures. Grundsätze des Denkens
1959 Unterwegs zur Sprache (GA12).
1976 Died in Freiburg, May 26. Buried in Messkirch,
May 28. Der Spiegel interview published, May 31.