Significant Dates in World History ( Praxis 0081 )
| 423482474 | 220 and 476 | Fall of Han dynasty and fall of the western Roman Empire | |
| 423482475 | 622 | Flight of Muhammad to Medina (considered the beginning of Islam) | |
| 423482476 | 1096-1099 | The First Crusade | |
| 423482477 | 1200-1300 | Mongol Domination of Asia | |
| 423482478 | 1453 | The fall of Constantinople to the Ottomans | |
| 423482479 | 1492 | Columbus lands in the Americas | |
| 423482480 | 1750-1780 | Height of the Atlantic slave trade | |
| 423482481 | 1789 | The French Revolution | |
| 423482482 | 1870's | Scramble for Africa begins | |
| 423482483 | 1914-1918 | World War I. | |
| 423482484 | 1939-1945 | World War II. | |
| 423482485 | 1947 | Independence of India and Pakistan | |
| 423482486 | 1957 | Sputnik launched | |
| 423482487 | 1989 | Fall of the Berlin Wall | 

