| Japan attacked Pearl Harbor on December 7 and the U.S. entered World War II. |
1776 |
| The "Declaration of Independence" was adopted by the Continental Congress. |
1848 |
| The California Gold Rush began and the Mexican-American War ended. |
1865 |
| The stock market crashed on October 29 and the Great Depression began. |
1908 |
| The Civil War ended and the 13th Amendment abolished slavery in the U.S. |
1929 |
| Neil Armstrong and Buzz Aldrin made the first moon landing. |
1941 |
| Al-Qaeda terrorists attacked the U.S. with hijacked jets on September 11. |
1969 |
| The Ford Model T mass-produced automobile was introduced. |
2001 |
