They both adopted Christianity
Thats my answer
There are many reasons but here's two
1. The 'war' and invasion etc was fought in the West so the province that you are going to have to raise troops and revenue from to fight the war is the same one where all the fighting takes place.
Meanwhile the 'East' had Anatolia as a heartland for revenue and recruits that was untouched .
<span>2. There is a lot of evidence that it wasn't simply 'barbarian' invasion but also a large element of rebellion against central authority by local forces. These are the people who are supposed to supply your troops and revenue.</span>
For the first question the cold war existed because an ideological war existed and for the second question I will have to say political because I did a lot of research and a lot of reading and I just assumed it was political let me know if you got it right hopefully I helped have a good day :)
D) <span>John Brown, an extreme abolitionist, tried to end the entire institution of slavery by attacking a federal armory in hopes to arm slaves in 1859—the raid failed.</span>
Asian immigrations explored different voyages through angel island