Help!!! Urgent!! Due at the end of class

Answer:
Explanation:
1) Monarchy
2)aristocracy
3) oligarchy
4)democracy
5) Marcus Aurelius
6) romans
7) Roman empire
8) holy roman empire
9) Constantine I
10) Constantinople
11) Justinian I. Justinian
12) Hagia Sophia
13) Code of Justinian / Codex Justinianus
14) theodora
15) iconoclastic controversy
16) Great Schism split
17) Roman catholic
18) Eastern Orthodox
19) pope
20) jerusalem
21) Ottoman
I hope this helps!