7. Current events: What was the biggest effect of the Crusades in the Middle Ages, and why do people avoid using the term "Crusade" today? It aided in ending the Middle Ages, which is sort of an “effect” on it. It also strengthened Christianity and most likely made the Christians feel more unified. | 7. Current events: What was the biggest effect of the Crusades in the Middle Ages, and why do people avoid using the term "Crusade" today? It aided in ending the Middle Ages, which is sort of an “effect” on it. It also strengthened Christianity and most likely made the Christians feel more unified. |