I believe it was the crusades, which was attacking for the land known as "Jesus's birthplace", need anything, tag me :)
Article I, Section 8 of the Constitution describes bot the "necessary" and "proper" kinds of congressional powers, since this gives Congress the right to do whatever is "necessary and proper" to carry out their duties.
Answer:The treaty was very harsh on the Germans. The Germans took all the responsibility for the war. Germans were suffering due to the great debt they owed, and their people were suffering. Setting the stage for WW2 so they could prove themselves worthy.
Explanation:
Well you could say that the Colombian exchange helped shape the modern world by changing population as the bringing of diseases to the new world killed most of the native population, shaping what population numbers look today. You could also bring up the Irish potato famine that was caused by the Colombian exchange as it caused Ireland to be what it is today. Hope this helps!