What challenges did the byzantine empire face from foreign forces?

avars and sassanids–

arabs–

bulgars–

How did the location of islamic lands make cultural diffusion possible

The crittenden compromise which option explains the role that this legislation played in the buildup to the civil war? it attempted to resolve the complications introduced by the missouri compromise; this to stave off the civil war. it sought to encourage southern diplomats to take their seats in congress so their voices could be heard in government. it proposed six amendments to the constitution aimed at protecting slavery; however, its passage was blocked by congress. it attempted to establish stipulations that made secession from the united states constitutionally legal.

In what year did vladimir lenin and the bolsheviks seize power in russia? 1885 1900 1917 1961