Ka cika wannan jumla: Daular Gabas ta fuskanci wani yanayi dabam. Ya tsira kusan shekaru 1000 bayan faduwar takwaransa na Yammacin Turai kuma ya zama masarautar kirista mafi kwanciyar hankali a lokacin Tsakiyar Tsakiya. A ƙarni na shida, Justinian ya sake mallakar tsibirin Italiya daga Ostrogoths, Arewacin Afirka
daga Vandals, da kuma kudancin Hispania daga Visigoths. Amma a cikin 'yan shekaru bayan mutuwar Justinian, mallakar Byzantine a Italiya ya ragu sosai a hannun Lombards da suka zauna a yankin. A gabas, a wani bangare saboda raunin cutar Justinian, Byzantines sun yi barazanar karuwar Musulunci. Mabiyanta da sauri sun kawo nasarar cin nasarar Levant, cin nasarar Armenia da cin nasarar Masar a lokacin yaƙe-yaƙe na Larabawa da Byzantine, kuma ba da daɗewa ba suka gabatar da barazana kai tsaye ga Constantinople. A ƙarni na gaba, Larabawa suka ci kudancin Italiya da Sicily. A yamma, mutanen Slav sun iya shiga cikin Balkans.