| Timeline |
| 1884 |
Born 8 May |
| 1901 |
Attends Spalding's Business College |
| 1903 |
Clerks for the National Bank of Commerce in Kansas City, Missouri |
| 1905 |
Bookkeeper for the Union National Bank in Kansas City, Missouri; serves in Battery B of the Missouri National Guard |
| 1906 |
Spends next decade helping on the family farm |
| 1916 |
Helps organize an oil-drilling company, later named the Morgan Oil and Refining Company; is sworn into regular army service as a member of 129th Field Artillery regiment |
| 1918 |
Serves in France, promoted to captain |
| 1919 |
Marries Elizabeth Virginia Wallace; opens a men's haberdashery store |
| 1920 |
Appointed major in Field Artillery, Officers Reserve Corps |
| 1922 |
Haberdashery business fails; wins election as an eastern judge on the Jackson County Court |
| 1923 |
Attends Kansas City School of Law until 1925 |
| 1924 |
Daughter, Mary, born |
| 1926 |
Elected presiding judge of the Jackson County Court, he serves until 1934 |
| 1934 |
Successfully runs as a Democratic candidate for the U. S. Senate |
| 1940 |
Truman wins the Democratic senatorial primary election |
| 1944 |
Nominated for the office of vice-president at the Democratic National Convention, Chicago, Illinois |
| 1945 |
President Roosevelt dies, Truman is president; war ends in Europe and then Japan; presents twenty-one-point legislative program to Congress |
| 1947 |
Truman Doctrine & National Security Act |
| 1948 |
Re-elected President; sends message to Congress asking for civil rights legislation to secure the rights of the country's minority groups; signs Executive Order 9981, desegregating the United States Armed Forces; Marshall Plan |
| 1949 |
North Atlantic Pact |
| 1950 |
Escapes attempted assassination |
| 1953 |
First volume of memoirs, Year of Decisions is published |
| 1954 |
Second volume of memoirs, Years of Trial and Hope is published |
| 1956 |
Signs an agreement with the National American Newspaper Alliance to write a series of articles for publication in newspapers around the country |
| 1960 |
Mr. Citizen published |
| 1961 |
TV series - "Decision: The Conflicts Of Harry S. Truman" airs |
| 1972 |
Dies 26 December |