Summarize at least 3 events that occurred in Europe and Asia that led to change during the middle ages?

Hey! You must be taking online school? Me too. I am JUST NOW coming across this question before I take my first assessment for History. Let me help you out!

1. Christians clashed with Muslims in long and devastating wars.
2. Famine and plague spread death across Europe.
3. Great cathedrals and new universities rose in Europe.