The Columbian Exchange was when the old world (Europe) trade with the new world (America) items. for example: Old World had horses. So if Europe never came to America... we wouldn't have them. Or new world had tomatoes. If Europe didn't have tomatoes... We wouldn't have pizza or delicious Italian goods.
Martin Luther posted his 95 thesis on the wittenberg castle church
hope this helps
“A totalitarian rule is when an individual has complete and absolute power. This means The individual can make Laws, control the military, and control the economy as they please in this case hitler’s Nazi Germans is a perfect example of this ideology.
Well the assassination of Archduke Franz Ferdinand is said to be the most immediate cause of ww1