Graduated (A.B.) from Harvard
Temporary aide in U.S. Coast Survey, fall to spring ’60
1860
Studied classification with Agassiz at Harvard, summer–fall
1861
Entered Lawrence Scientific School at Harvard
Appointed regular aide in Coast Survey, 1 July
1862
Received graduate degree (A.M.) from Harvard
Married Harriet Melusina Fay, 16 Oct.
1863
Graduated summa cum laude (Sc.B.) in Chemistry from Lawrence Scientific School
1865
Delivered Harvard lectures on “The Logic of Science,” spring
Began Logic Notebook, 12 Nov.; last entry in Nov. ’09
1866
Delivered Lowell Institute lectures on “The Logic of Science; or Induction and Hypothesis,” 24 Oct.–1 Dec.
1867
Elected to American Academy of Arts and Sciences, 30 Jan., where he presented five papers on logic throughout the year
1868
Wrote three anti-Cartesian papers for the Journal of Speculative Philosophy
1869
Wrote first of about 300 Nation reviews; last in Dec. ’08
Assistant at Harvard Observatory, Oct. ’69–Dec. ’72
Delivered Harvard lectures on “British Logicians,” Dec.–Jan.
1870
First Coast Survey assignment in Europe, 18 Jun. ’70–7 Mar. ’71
1872
Founded Cambridge Metaphysical Club, Jan.
In charge of Survey office, spring–summer
Put in charge of pendulum experiments, beginning in Nov.
Promoted to rank of Assistant in the Survey, 1 Dec.
1875
Second Coast Survey assignment in Europe, Apr. ’75–Aug. ’76
First official American delegate to the International Geodetic Association, Paris, 20–29 Sept.
1876
Separated from Melusina, Oct.
1877
Elected to National Academy of Sciences, 20 Apr.
Third Coast Survey assignment in Europe, 13 Sept.–18 Nov.
Represented U.S. at International Geodetic Association conference in Stuttgart, 27 Sept.–2 Oct.
1878
Photometric Researches published in Aug.
1879–84
Lecturer in logic at Johns Hopkins University
1879
First meeting of Johns Hopkins Metaphysical Club, 28 Oct.
1880
Elected to London Mathematical Society, 11 Mar.
Fourth Coast Survey assignment in Europe, Apr.–Aug.
Addressed French Academy on value of gravity, 14 June
Designed and supervised construction of the first of four gravity pendulums bearing his name
Death of Peirce’s father, Benjamin, 6 Oct.
1881
Elected to American Association for the Advancement of Science in Aug.
1883
Studies in Logic published in spring
Divorced Melusina, 24 Apr.
Married Juliette Froissy (Pourtalais), 26 Apr.
Fifth and final Coast Survey assignment in Europe, May–Sept.
1883–91
Prepared about 15,000 definitions for Century Dictionary (published 1889–91)
1884
Forced to resign from Johns Hopkins; moved to Washington, D.C. in Sept.
In charge of U.S. Office of Weights and Measures, Oct. ’84 to 22 Feb. ’85
1884–86
Directed pendulum operations to determine relative gravity at Washington, D.C. and various field sites, Jul. ’84–Feb. ’86
1886
Moved from Washington, D.C. to New York City, Mar.
Began reports on his gravity field work
1887
Began correspondence course in logic, Jan.
Moved with Juliette to Milford, Penn. 28 Apr.
Death of Peirce’s mother, Sarah Mills, 10 Oct.
1888
Appointed by President Cleveland to U.S. Assay Commission, 1 Jan.
Purchased with Juliette the Quick farm about two miles northeast of Milford, 10 May
1889
Start of publication of the Century Dictionary
Juliette diagnosed with tuberculosis in May
Submitted last report on gravity, 20 Nov.
Juliette traveled to Mediterranean for health, 27 Nov.
1890
Resided in New York, spending much time at the Astor Library, until Juliette returned from the Mediterranean in June
Drew up list of mathematical works for the Astor Library, May
Invited by Paul Carus to write article for inaugural issue of the Monist, 2 July; submitted “The Architecture of Theories,” 30 Aug. (too late for the first issue), launching one of his most important publishing relationships
1891
“The Architecture of Theories” (first article of the Monist metaphysical series) published, 1 Jan.
Publication of Ernst Schröder’s Vorlesungen über die Algebra der Logik, which contains an extensive discussion of Peirce’s logic
The Peirces named their estate Arisbe, March
First printing of Century Dictionary completed, fall
Attended New York Mathematical Society meeting at Columbia and was elected to its membership, 7 Nov.
Abbot–Royce affair began with Peirce’s letter to the editor of The Nation, 12 Nov.
Resigned from Coast and Geodetic Survey, 31 Dec.
1892
Had a religious experience at St. Thomas’s Episcopal Church, 24 April
Read “Law of Mind” to the Harvard Philosophical Club, 21 May
Assisted with the translation of Ernst Mach’s Science of Mechanics for the Open Court, July ’92—May’93
Delivered Lowell lectures on “The History of Science,” 28 Nov. ’92–5 Jan. ’93
1893
Petrus Peregrinus announced; prospectus published, Oct.
“Search for a Method” announced by Open Court (not completed)
“The Principles of Philosophy” (in 12 vols.) announced by Henry Holt Co., Dec. (not completed)
1894
“How to Reason” rejected by both Macmillan and Ginn & Co.
1895
“New Elements of Mathematics” rejected by Ginn & Co.
1896
Consulting chemical engineer (till ’02), St. Lawrence Power Co.
1896–97
Reviewed Ernst Schröder’s works on logic of relatives
1898
Delivered Cambridge lectures on “Reasoning and the Logic of Things,” 10 Feb.–7 Mar.
“The History of Science” announced by Putnam’s (not completed)
William James introduced “Pragmatism” to Berkeley Philosophical Union, naming Peirce its father, 26 Aug.
