| Headline | Year |
| Albert Einstein presents special theory of relativity: general relativity theory to follow | |
| Alexander Fleming discovers the first antibiotic, penicillin | |
| American scientists patent the computer chip | |
| Berlin Wall falls as East Germany lifts travel restrictions | |
| China begins 'Great Leap Forward' modernization program: estimated 20 million die in ensuing famine | |
| Civil rights leader Martin Luther King assassinated in Memphis, Tenn | |
| Congress passes Voting Rights Act, outlawing measures used to suppress minority votes | |
| Cuban Missile Crisis threatens World War III | |
| First mass market personal computers launched | |
| Horrors of Nazi Holocaust, concentration camps exposed | |
Japan bombs Pearl Harbor: United States enters World War II | |
| John Glenn becomes first American to orbit the earth | |
| Louise Brown, first 'test-tube baby,' born healthy | |