| A | B |
| Hay-Herran Treaty | Original treaty with Columbia over the Panama Canal. It failed. |
| Hay-Buneau-Varilla Treaty | Gives US permanent rights to a 10-mile-wide strip of land(on the canal) in return for $10 million and annual payments. |
| First heavier-than-air machine flight. | Done by Orville Wright, took all of 12 seconds. |
| Niagra Movement | Headed by Du Bois and supported by the "Declaration of Principles" |
| The "Muckrakers" event | Roosevelt condems the press for digging for dirt. |
| Panic of 1907 | J.P. Morgan saves the day by importing $100 million in gold to bolster U.S. currency. |
| Introduction of Model T | Done by Henry Ford, who wanted to bring his product to every American for an affordable price. |
| Founding of the National Association for Advancement of Colored People | Happened in 1909 and involved W.E.B DuBois as the founding president. |
| Foraker Act(1900) | Confirms Puerto Rico as an unconsolidated territory of the US. |
| Galveston Hurricane | Sweeps over Texas and kills 6,000-7,000 people. |
| San Francisco Earthquake | Kills an estimated 500 people and a fire destroys most of the city. |
| "Memphis Blues" | The first blues to be written down. |
| Election of 1908 | William Jennings Bryan loses yet again to Roosevelt's successor William Howard Taft. |
| Pan-American Exhibition in Buffalo, NY. | Where President McKinley is shot by Leon Czolgoz on Sep. 6 1901. |
| Newlands Reclamation Act | Authorizes the building of irrigation dams across the West. |