1066 until his death in 1087
The correct answer to this open question is the following.
Although there are no options attached or further references, we can comment on the following.
I think some of the challenges facing those restoring the Hagia Sophia church in Turkey are the following.
First, the budget needed to continually restorative the impressive building. Next, the qualified persons to do it. They need specialists in engineering and art to do the kind of conservation needed.
For a monumental structure like Haga Sophia, it is required to have a high budget to do permanent maintenance works as a preventive measure, as well as to correct the problems caused by the pass of time such as erosion, cracks in the walls, humidity.
Answer:
J Edgar Hoover was head of the FBI from its inception in 1935 until his death in 1972.
Explanation:
Hoover, as far as these groups would have been seen as an adversary. He had conservative right wing views and used the FBI to amass files on anyone he considered a threat to his right wing vision of the USA. These included leading civil rights activists such as Martin Luther King Jnr and more radical black activists such as Angela Davis and Malcolm X.
Such hostility was aimed at anyone considered on the left, for example those black listed in Hollywood during McArthyism.
Hoover also consistently denied that there was an organized crime family, the Mafia, in the USA. Some have speculated that this is because the Mafia blackmailed him.
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1. The Byzantine Empire was comprised of the Easter fragments of the Roman (latin) empire, but it comprised mostly Greek speaking citizens. However, the Greek Speaking empire was very large including Greece, Turkey, Inonia, Antioch (the israel area), Egypt, North Africa, the Mediteranean Islands, Balkans, and Southern Italy.