| 1899 | Open door Policy proposed. | Hemingway is born in Illinois. |
| 1900 | Boxer rebellion in China. | |
| 1901 | President McKinley Assassinated. | |
| 1903 | Wright Brothers first flight. | |
| 1904 | U.S. granted Panama Canal zone. | |
| 1905 | Russo-Japanese war ends. | |
| 1906 | Great San Fransisco earthquake. | |
| 1908 | Ford introduces the Model-T. | |
| 1912 | Titanic goes down. | |
| 1913 | 16th & 17th Amendments pass. | |
| 1914 | WW1 begins | |
| 1915 | Lusitania sunk | |
| 1917 | U.S. enters WW1 | Hemingway gets a job as a reporter for the Kansas City Star |
| 1918 | Hemingway becomes an honorary second lieutenant in the Red Cross. | |
| 1920 | 18th Amendment passed. | |
| 1921 | Hemingway marries Elizabeth Hadley and moves to Paris. | |
| 1926 | First publication of "The Torrents of Spring" and "The Sun also Rises". | |
| 1928 | After divorcing Hadley he publishes "Men Without Women". | |
| 1929 | Great Depression | Hemingway's father commits suicide. "Farewell to Arms" is released. |
| 1931 | "Death in the Afternoon" is published. | |
| 1936 | Hoover Dam finished | |
| 1938 | "War of the Worlds" is broadcast. | |
| 1939 | WW2 begins | |
| 1940 | Divorces 2nd wife Pauline. Marries 3rd wife Martha and publishes "For Whom the Bell Tolls". | |
| 1941 | Pearl Harbor is bombed | |
| 1945 | Hemingway suffers major head trauma from a car accident. Divorces Martha. | |
| 1946 | Cold War begins | Marries 4th wife Mary Gelhorn & returns to his home in Cuba. |
| 1949 | Berlin airlift | |
| 1950 | Korean War | |
| 1952 | Publishes "The Old Man and the Sea" for which he receives the Purlizter Prize. | |
| 1958 | NASA began | |
| 1959 | Hawaii & Alaska become states | |
| 1960 | Ernest & Mary move to Ketchum, Idaho and he begins work on "The Dangerous Summer". | |
| 1961 | Bay of pigs invasion | On July 2nd Hemingway commits suicide never completing his last book. |
