For each question, be sure to consider as many of the themes of European as possible.  Here are a couple representing the relatively simple to the more complete. 

ESP

Economic

Social

Political

 

SPRITE
Social

Political

Religion

Intellectual

Technological

Economic

Also be thinking about how cause and effect can be used in your essay.  Anything that happened probably caused another event and so on.  Use cause and effect to explain chronological development.