In what order did the following events of
justinian's rule occur: the completion of the hagia sophia, the
creation of justinian's code, the end of justinian's conquests,
the death of empress theodora?

I believe that the order is this:

1.  creation of Justinian's code

2. the completion of the Hagia Sophia

3.  the end of Justinian's conquests

4. the death of Empress Theodora

Explanation:

I'm pretty sure this is right, and if not I'm sorry. I'm not a history expert.

id say bottom left to top top left to bottom right and middle to middle

explanation:

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.