I'll give you brainliest if your right! either way you get 48 points select all that apply

Which were Japanese historical periods?

Kofun
Burman
Asuka
Nara
Heian
Khmer

I believe the answer is Kofun, Nara, Asuka, and Heian.

Explanation:

My text talks about the Japanese government and how they started the Kofun period plus the three other historical periods that follow it which they stated as the other three I put.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).