| 1848 |
born November 8 |
| 1869 |
entered the
University of Jena |
| 1871 |
transferred
to the University of Göttingen |
| 1873 |
received doctorate in mathematics (Geometry) |
| 1874 |
earned
a habilitation in mathematics at University of Jena |
| 1879 |
published first major work in logic on concept notation,
promoted to ausserordentlicher Professor, married to Margaret Lieseburg
sometime after publication (at least tow children died young, later
adopted a son, Alfred) |
| 1884 |
published The Foundations of Arithmetic |
| 1891 |
published "Function and Concept" |
| 1892 |
published "On Sense and Reference" and "On
Concept and Object" |
| 1893 |
published
The Basic Laws of Arithmetic: Volume 1, his magnum opus |
| 1894 |
promoted to position of Honorary Ordinary Professor |
| 1896 |
became
ordentlicher Honorary professor, University of Jena |
| 1902 |
published volume II of Basic Laws of Arithmetic |
| 1903 |
published "Ont the Foundations of Geometry" |
| 1905 |
wife died |
| 1906 |
produced little work until his retirement, "ran out of
steam" |
| 1918 |
retired from the University of Jena, published "The
Thought" and "Negation" |
| 1923 |
published "Compound Thoughts" |
| 1925 |
died
July 26 in Bad Kleinen (now in Mecklenburg-Vorpommern) |
|
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